there for safekeeping because that's what you have and that's what you hold on to. >> it hurts. it hurts. life will never be what it was with her. i'm really sorry. i understand why they hate me, to anyone that's loved him. for the role i played, i'm deeply, deeply sorry. >> it was right out of a soap opera. the husband, the wife, the affair with the local dentist. >> i just don't think of myself as someone -- why would he will interested in me, you know? >> was it passionate?

>> yeah. >> but the script turned up dark when her husband turned up dead. >> he was found in his car outside the gym. we were like heart attack, aneurysm. >> we all assumed it was a health related death. >> 40-year-old men just don't drop dead. it is just too many coincidences shall we say adding up. >> we believe it was a poisoning. >> someone else was there with him that morning. >> this is now a murder investigation? >> 100%. >> they're hearing about a love try angle. >> she admitted that she was having an affair. >> i had nothing to do with his death. >> the plot was just beginning to thicken. >> oh, my god. this can't be happening now. a new love makes a world seem a little brighter. >> yeah, very smooth, almost sexy way about him. >> makes the heart beat a little faster. >> was it passionate? >> yeah. >> but when that love is

forbidden. >> i was like what? how can that be? how could i not have known? >> a family would wonder if other secrets might be hidden. >> why would you do this? how could you be so irresponsible? >> the whole thing was an atrocity. it wasn't a tragedy. it was an atrocity. ♪♪ it all began a couple hours from new york city. rolling hill, a majestic river and quaint small towns. linda coleman, it was the perfect place to raise a family. >> good girl. >> i grew up in small schools. and just involved in sports and things like that. >> everyone seems friendly, and it just seems kind of -- >> yeah.

they're small hometowns. >> it is where linda lived with her husband town and family, a loving home where they celebrated birthdays and holidays. thanksgiving 2011 was a busy time visiting relatives over eating and watching football. >> he just loved the game of football. he was a giants fan from a kid. >> and you took him to his first giants game? >> i did. there is pictures of him like standing down by the field like, look at me. kid in a candy store. it was great. >> yeah. >> both linda and tom had been married before, but this felt like the real deal. >> what was it about tom's personality that made him so lovable and made you love him? >> he had a shyness about him that was sweet. he had like a kind of shy, flirty kind of way. it was just adorable. >> when it came time to tie the knot, they rolled the dice and eloped. >> little white chapel.

>> yep. it was beautiful. flowers, music, really beautiful. >> it was unusual. they're walking through a casino and someone has a wedding gown on. >> the only guests were linda's parents and tom's mom and dad mari yerks and tom jr. both had kids from their previous marriages, but a few years later, they welcomed a child of their own, ryan. >> he would say all along in the pregnancy, i don't care if it is a girl or boy. but i know deep down he kind of wanted a boy. so when he was delivered and he saw it was a boy, he cried. he was so happy. really happy. >> did you immediately see a relationship made in giants heaven after that? >> oh, absolutely. >> they were a blended family. his, mine and ours as they like to call it. linda had a daughter who lived with her and tom while tom's two kids from his first marriage lived in colorado, brad and

daughter gillian. >> i grew up knowing that my step siblings were my siblings. it never felt not normal. you know? it felt like at dad's house that was my house. >> and despite the distance, tom was very close to his oldest kids. >> i was a daddy's girl, definitely. no doubt about that. >> he always made sure that whenever brad and i were in town that we would have fun, like we wouldn't just be sitting around. we always had fun plans. >> gillian and her dad talked on the phone all the time. thanksgiving weekend 2011 was no exception. >> and i remember we hung up and we blew a kiss over the phone like we used to when i was 10 and we hadn't in years. i thought that was cute. >> when the weekend of family and football was over, it was monday, november 28th. and lucky for tom, the new york giants were on tv. >> we stayed up and watched the

football game, the giants football game. i went to bed. >> the next morning, as usual, he was up and out of the house before linda and the kids were even awake. >> he normally got up to go to the gym around 5:30. gave me a kiss on the forehead. >> after working out, like clock work, he always went straight to his job as a physical therapy supervisor. he and linda usually texted soon after. but when linda sent him a message that morning. >> i didn't get a response. i was getting a little concerned, but, you know, maybe he is in a meeting. maybe he's, whatever, he's tied up. >> she wasn't really worried until her phone rang. it was a friend of tom's. >> i got a phone call from gill saying have you heard from tom. i said no. he said, have you heard from tom? >> was there concern or just maybe, oh, he's at the gym? >> tom would never miss a morning of work.

>> linda jumped in her car to retrace her husband's steps hoping to find him. she never imagined that search would lead where it did. coming up, linda's heart-breaking story. >> i saw his car. i was like, oh, my god. >> tom coleman had gone to the gym. in fact, he was still there. >> i was like, wake up. what are you doing? why aren't you at work? i just thought, oh, my god. this can't be happening now. >> when "the good husband" continues. yeah...uh... doug? sorry about that. umm... what...its...um... you alright? [sigh] [ding] never settle with power e*trade. it has powerful, easy-to-use tools to help you find opportunities, 24/7 support when you need answers plus some of the lowest options and futures contract prices around. don't get mad. get e*trade and start trading today. (vo) this is more than just a building.

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tom wasn't the kind of guy that didn't return calls from his wife. he always showed up for work. >> he was really dedicated to, you know, his work. and he loved it so much, he went to get his doctorate in physical therapy. >> people just loved him. he was such a sweetheart. >> that morning when tom went mia, linda was frantic, and she jumped in her car to look for him. >> he goes into gym and to work. so i went to gym, and i pulled in. at first i didn't see his car. but as i pulled further through, i saw his car. i looked over. and i was like, oh, my god. he's laying down. and i thought, he fell asleep. like he looks like he's

sleeping. and so i jumped out of the car and i opened the car and i jumped in and i was like, wake up. what are you doing? they're looking for you at work. >> but tom wouldn't wake up. linda called 911. >> i'm in -- i'm in the parking lot by planet fitness. i was looking for my husband, and i found him in his car, and i don't know if he's breathing. >> what did you think had happened to him? >> at that point maybe had a migraine and took some migraine medicine and laid down. >> but he's not waking up while you are waiting for the ambulance. >> his hands were really, really cold. and i realized that his nails are blue. >> ma'am, are you able to see if his chest is going up and down. >> i don't think it is. >> paramedic was one of the first responders. >> i believe we were here within about three minutes of the call. >> what did you see as soon as

you arrived? >> mr. coleman's car was parked here and mrs. coleman's car was parked here. she was on the side. she was very distraught. >> did you attempt to resuscitate him? >> i did not. after my quick examination, i could tell that there was nothing that we could do. he had been deceased for a while. >> the paramedics just stood there. and i was like, what are you doing? like help him. just get in the car and help him. and they just stood there and they were like, no. i just was like shocked, like can you at least try? i remember one just said, he's gone. and he did. he just felt so cold. >> did you just feel like this is so unfair. >> i was just like, oh, my god. this can't be happening now. it can't. >> shortly after, tom's friend gil called linda and rushed to the scene.

>> came charging across the lot. the police intercepted him to find out who he was and what was going on. and obviously keep him away. >> that's him in this dash cam video off to the right, collapsing in grief as he learns the news. meanwhile, first responders and arriving officers processed the scene. >> anything unusual about his body or did he just look peaceful. >> his trousers were open just a little bit. his shirt was pulled out and he was reclined back in his car. it looked like he took a nap and didn't wake up. there was a little presumption that it may have been a heart attack or cardiac event or something had happened. he was a large man. >> but since tom's death was what police call an unattended death, there had to be an investigation. mike and tom both worked the case. >> no obvious signs of anything? >> nothing. there was nothing in the vehicle. there was nothing surrounding the vehicle.

there was no obvious trauma to him himself other than him literally just being in the car in that position and with the vehicle being parked in the furthest possible spot away from the gym. that was something that struck us a little odd as well. >> they took note of how linda, the wife, was reacting at the scene. >> her demeanor, was it exactly what you would expect from a wife making a discovery like this? >> 100%. 100%. there was nothing out of the ordinary with her, reaction. her words. it was more hysteria. >> police escorted linda to the station to ask her questions about tom's health. gil followed. >> he stated he wanted to be obviously with her to help her through this. >> was he interviewed at all on that day. >> not that day. >> linda told them tom had medical issues. >> she had mentioned to us that

he had hypertension. he had sleep apnea, which unfortunately they ultimately stop breathing at certain times during the night. >> that sounds dangerous. absolutely. he was diagnosed by his doctor as having a severe case of sleep apnea. >> did you think this was going to be an open and shut case once you got the autopsy results? >> yeah, absolutely. and that unfortunately was not the outcome the next day. >> instead, the results would turn this tragedy into a tangled mystery. coming up -- >> what had happened to tom coleman? >> 40-year-old men just don't drop dead like that. >> i couldn't believe it. >> why didn't you believe it. >> he was always in good shape. exercised and everything. >> there is a death that is not a natural death, you look at the closest people first, usually the spouse. >> a block buster new clue. >> what did that video show? >> we were able to observe a

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you're in good hands with allstate. click or call for a lower auto rate today. just after a busy thanksgiving weekend, linda coleman found herself surrounded by family and friends again. this time it was not to celebrate, but to grieve. tom, her husband of ten years, was dead. >> i think she was just in such a state of shock that it's almost like she wasn't there. >> linda's sister, deborah, raced there. >> my family were there, my parents. and there were some friends that had gathered, some of his friends. >> there were so many people to tell. tom's siblings broke the news to his parents. >> when i came home at 3:00, all my children were at my house.

they were told that it looked like a cardiac event, and he didn't survive it. but we just couldn't believe it. >> why didn't you believe it? >> because he was always in good shape. exercised and everything. he was overweight, but still, he tried. he was healthy. >> his daughter gillian and son brad found out from their mom michelle. >> i heard my mom come in and she was in tears. i came downstairs and brad was there and she was struggling to compose herself, and she just looked at both of us and no beating around the bush, just said, your dad is dead. everything is a blur. words like heart attack and aneurysm kept coming.

it was just utter heart break. >> the three of us stood together hugging and then collapsed on to the floor. but it did seem to be a really long time that we just didn't let go of each other. >> they flew to new york and joined the growing crowd at tom and linda's house. >> linda was a wreck. she needed help standing up sometimes. she was just riddled with grief. >> as the coleman's made funeral arrangements, investigators met to nail down the cause of tom's death. what they heard changed everything. >> it was undetermined pending toxicology results. >> the medical examiner explained there was no evidence of a heart attack, aneurysm or any health related event. >> now you got an undetermined

cause of death on a 40-year-old male. >> are you still thinking this could be medical, or are you starting to think we could have a homicide on our hands. >> we've had to wait for toxicology reports to come back to come up with a cause of death. but in the meantime, we're thinking, i would say, thinking the worst. >> until we can disprove that it's not a homicide, we've got to treat it as such. >> crime scene techs worked on tom's car and took swabs for clues while detectives set out to learn more about his movements on the day he died. linda told police the last time she saw tom was the night before watching football. she assumed he left for the gym the following morning at 5:30. so investigators pulled security video of the parking lot to see what that could tell them. it was dark and grainy, but revealed a lot. >> in the video itself, we were able to observe a white suv arrive in the parking lot of

planet fitness. that was about 4:30 in the morning. ten minutes later, we see thomas coleman's vehicle pull into the parking lot and pull right next to this white suv. that's when we knew that obviously someone else was there with him that morning. >> the plot really thickened, i'm sure, after seeing that video. >> yes. >> so this is the planet fitness right here? >> this is the planet fitness to your right where tom worked out every morning. >> bill is a retired fbi agent and the chief investigator for the district attorney. he showed us in the light of day what's hard to see in that grainy video. >> this is exactly where tom was parked, right here, which as you can see it is a great deal away from the planet fitness where he normally worked out in, so this would not be a normal parking spot to pull into at that hour of the morning to work at that gym. >> and the mystery suv pulled up where? >> right here, both facing

north. >> could you identify a person, a make, a model of the car? >> no. it was pitch black. these lights were not providing any illumination at all. the only thing we could observe was that the two vehicles were parked side by side for 30, 35 minutes. >> the mystery suv left at 5:30 a.m., but tom's car never moved. >> what does that tell you? >> there had to be contact between the two. so we knew now someone had met with hum prior to his death and we now have to figure out who that is. >> easier said than done of course. >> we just pulled up here and lo and behold there is a white suv here beside us. there is a white suv there. a white suv there. they're everywhere. >> everywhere. >> but thanks to the video, investigators now thought they had an important lead to help narrow their search. >> whoever tom was interacting

with in this white suv, he was expecting him and he knew him. >> time for investigators to start looking at tom's inner circle, picking apart his simple suburban life. >> linda coleman would be someone you would want to look closely at. >> no question. if there is a death that is not a natural death, you look at the closest people first. usually the spouse. coming up -- >> i mean, is your head starting to spin a little bit? >> we're trying to get a held of what we got now because things are starting to pile up. >> he didn't want to talk to me. >> soon they discover another reason to take a look at linda coleman. >> me and linda, we have a relationship. >> sexual relationship. >> well, yeah. >> he's having an affair with linda coleman. >> it caught us off guard. >> when "the good husband" continues. pepto bismol coats your stomach with fast and soothing relief. and try new drug free pepto herbal blends.

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with no obvious medical explanation for tom coleman's death, the police decided to treat it as a possible homicide, but said nothing to his family. >> we just decided to sit back and wait until we found out a cause of death. and that's what we did. we just sat back. >> for tom's parents, burying their first born was excruciating. but something the funeral director said gave them comfort. >> when people die and if they are well respected, people come from all over. >> and they did. i had relatives from rochester, long island, new jersey, virginia, even from california. >> how moved were you at the funeral when you heard people speak about tom and all the love that was in that room? >> just great. >> walking into the wake was one of the hardest things i have

ever done. i waited for all my siblings and all four of us walked in arm and arm. faces down just bawling. and we talked up to the coffin and just all almost just collapsed together and just went. >> detectives discreetly sent an officer to the funeral home to observe if tom's death was a homicide, they wanted to keep an eye on linda. but they also needed to find out if tom had any enemies. >> tom was just a great guy. he was a middle class man, hard working, loved his family, would do anything for them. we couldn't find any enemies in the world that would want to do anything against tom. >> you had a real mystery you had to solve here. >> absolutely. >> there was one person that raised a few eyebrows at the wake. tom's friend gil who had raced to the scene when tom was found in his car. >> he was moaning and crying and carrying on, greeting people at

the door and how could this have happened, and just a very bizarre display that even the family members commented on was who is this guy? who did he come from? and what's going on here? >> investigators wanted to speak to anyone including tom, including gil. he was a prominent local dentist originally from the dominican republic. >> how long have you known him. >> were four years, but a friendship around three years or so. >> he seemed to know a lot about tom's wife, his work hours, his marriage, even his medical history. >> any medical conditions that you know of. >> yes. that i know of, he had sleep apnea. >> investigators also fished for information about tom's wife. >> how's linda doing? i guess -- >> have you talked to her. >> oh, yeah.

yeah, i've been there. >> how is he doing? >> she's not doing too good. you know? she's in bad shape. >> that wasn't all he had to say. he had something far more interesting to share with the detectives. >> me and linda, we have -- we had a relationship so -- >> okay. >> sexual relationship, i'm assuming. >> well, yeah. >> what is that like when he reveals he's having an affair with linda coleman. >> i thought it caught us off guard because that was the first time we discovered that. we had no reason to ask him about that type of relationship with linda. >> how long ago did that start? >> uh, probably like a year. >> and gil revealed that another detail that was even more surprising. >> did tom know about that? >> oh, yeah. >> he knew about our relationship, yeah. he -- he found out sometime in the summer. >> gil said that not only did

tom know about the affair. the two men continued their friendship. >> and he saw that i was honest about it, and he was honest about it. so we got pretty close. i mean, to the point of like, he got me into football, which i didn't have a clue. >> how crazy is this, though, that tom continued to hang out with gilberto? they stayed friends even after he finds out he's sleeping with his wife? >> better man than i am. it is just not the norm. it is not something you see. >> was your head starting to spin a little bit. >> we're trying to get a hold of what we got now because it stemmed from unattended death in the parking lot of a fitness club to now we got all this. so within days the things are starting to pile up. >> now i would imagine you more than ever need to talk to linda coleman. >> we do. >> they did want to talk to me a few days after, and one of the

first questions is what is your relationship with gilberto nunez. >> coming up -- >> he had a way about him. he had a very smooth, i want to say, almost sexy way about him. his personality was sucking me in. >> did he kiss you while you were in the chair. >> yeah, which blew me away. >> you're just living in almost two different lives. >> i had a real life and then i had a fantasy life. >> passion, secrets, anger. >> he comes right at me with what was going on. >> scandalous. >> and i said, this is what's been going on. >> when "the good husband" continues. feel the difference with downy. let's go walter! after you. walter, twelve o' clock. get em boy! [cows mooing]

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the story. >> i told them everything. i didn't care anymore at that point. i wasn't hiding a thing. >> how did you meet gil? >> i met him at my son's kindergarten orientation. >> he had a son in the same class? >> a son, yes. >> that was in 2009. gil was married then and the two couples started socializing. >> we all seemed to like each other and we're friendly and they would say, hey, you want to go out to dinner or whatever? okay. >> you started to get to know him better through school events or -- >> through that and our sons both did karate together. they were in the same karate class. >> tom and g irs l also hit it off and became close, talking sports and watching giants games. and like tom, gil was a hands on dad. he went to all his son's karate classes where he would see linda. >> gil and i would sit next to each other and talk.

this was like three times a week for an hour. >> what was it about gilberto that you liked? >> very friendly, very personable. >> a year went by before linda realized something was happening between them. >> every time he would leave, he would give me a kiss good-bye. >> on the lips? >> or a hug and a kiss on the cheek. see you next week kind of a thing. really wasn't that big of a deal to me. it was kind of his culture. but then i noticed when i was leaving the kiss was no longer on the cheek, so i would go back to my car like, was that an accident? >> lingering or -- >> just, no, fairly quick. >> linda said nothing to her husband. and she and gil never discussed whatever it was that was going on until one day he finally said it. >> he actually called me one night. he basically was like, you know, i can't get you off my mind.

you're beautiful. i was like, oh. >> that's a hot potato right there. >> yeah. so from then he started just texting me here and there to talk and it just progressed. >> did you think he was handsome? >> not really, to be honest with you. but he had a -- he had a way about him. he had a very smooth, i want to say almost sexy way about him with the accent. >> latin thing going on? >> yes, yes. totally. his personality was sucking me in. >> it was early 2011. both gil and linda's marriages were going through rough patches. >> in all honesty, tom and i were having some troubles at home. >> what were you struggling with? >> i think probably the same stuff that every marriage after ten years struggles with. you know, paying the bills,

working two jobs. >> real life problems. >> yeah. and they were stressful. >> so was gilberto a little bit of an escape for you? >> yes. yes. that's a really good way to put it. >> how does it finally get acted upon? >> i went and had some dental work in his office. so then you could imagine once i'm there and i'm in the chair and the next step. >> did he kiss you while you were in the chair? >> yes. which blew me away. the fact that this dentist, this smart guy, this smooth guy who seems to have everything would even want to kiss me or choose me, like i just don't think of myself as someone -- why would he be interested in me, you know? >> was it passionate? >> yeah. >> pretty soon, they were meeting for sex. and by spring, gil had separated from his wife and was living in an apartment above his dental

practice. >> you had a busy life, a job, husband, children. in a small town. how are you carrying on this affair. >> i still was the wife and the mother. i was home for my kids every night after work. and i would see him at lunchtime. >> linda thought it was a well kept secret. but maybe not so much. a few months into the affair, someone tipped off tom with an anonymous text message. >> he comes right at me with it. you know, i'm getting these texts that you are with gil. what's going on? >> that's so scandalous. >> yeah. i said, this is what's going on. i cleared the table. i have been having an affair and it was with him. >> was there any part of it that felt -- i don't want to use the word "good," but you got it off your chest? >> yeah, it did because then at least i could talk to tom about it. at one point he said to me, i can see he has some kind of hold on you.

he's like, i see it. and he did. >> and linda told us what detectives found it hard to believe. >> how did it affect tom the fact that he was friends with both of you? >> strangely enough, they still continued to be friends. >> that is so hard to grasp. >> i know it is, but they did. they cared about each other. they were like buddies. tom would invite him over to sunday dinners. i know it sounds nuts. >> a little bit. >> i know. >> how are you handling that? >> just like -- i'm just like in the middle like, what do i do? >> you are the object of both of their affection. >> yeah. and i loved them both. and i would say, well, you know, you don't have to decide tomorrow. let's just take some time and figure this out. you know? >> linda says tom didn't pressure her to end the affair.

to the contrary. he gave her the time and freedom to continue seeing gil and sort out her feelings. >> you are just living in almost two different lives, but they have intersected. >> i had a real life and i had a fantasy life, basically. >> but everyone in the triangle knew it couldn't last. linda had to make a choice. gil or tom. and a few weeks before tom's death, she did. >> coming up -- >> her husband or her lover? >> he threw me on the bed and he was tickling me. >> who would linda choose? >> hindsight, i think he knew probably about my body language just him knowing me as well as he did that he was losing. >> had she and gil been telling police the truth. >> maybe linda wanted tom out of the way so she could be with gilberto. >> no question. gilberto. >> no question

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and get the advanced cybersecurity solutions you need with comcast business securityedge. ask how to get comcast business securityedge to help protect all your connected devices. and get started with a great offer on fast and reliable internet and voice for just $64.99 a month. plus, ask how to get a prepaid card up to $500. call or go online today to learn more. comcast business. powering possibilities. it was just a few days after her husband's death when linda admitted to detectives that, yes, she was having an affair with her husband's best friend. >> for a little bit of time there it was me trying to decide what we wanted to do or what was i going to do. they were letting me decide, you

know. >> for months linda's affection ping-ponged between the two men. until her wedding anniversary rolled around. >> i think it was really that weekend that i realized that i just want to be with my husband. he's my best friend. i love him. i don't want to do this anymore. i have been stupid and foolish and ridiculous and i don't want to do it anymore. >> you chose tom? >> i chose tom. >> a couple of weeks later, it was thanksgiving. still on friendly terms, gil shared the holiday with tom, linda and their family. monday linda met with gil alone, but decided to postpone telling him their affair was over. >> what was that discussion like? what did you tell him? >> the holidays are here. we have all these kids. we can't, you know.

he was like, okay. i'll wait for you decision. >> do you think he knew? >> hindsight i think he knew probably by my body language and just him knowing me as well as he did that he was losing me. >> that night linda felt she and tom were back on track. >> i remember coming upstairs and he picked me up and threw me on the bed and he was tickling me. i think he both just felt like there is light at the end of this tunnel, and this is the old us. we're happy and silly and -- and we'll get through this. you know? >> the next morning, tom was dead. and investigators were now learning details about his complicated personal life. >> a bit of a soap opera going on here. >> prior to moting you guys, we said this is a "dateline" case. >> and here we are. >> despite what they heard, investigators were skeptical that this love triangle really had no jealousy or resentment.

da investigator bill. >> we had to try to determine was there some type of relationship that we weren't seeing between the victim and nunez? what was going on between the two of all -- that tom kolman would allow the sexual relationship to continue between his wife and nunez?

>> you do see strange reaction but i believe his reaction was more than over dramatic. we kept in the back of her heads for later on. >> both linda and gill told police the affair was now over, but investigators weren't so sure and began watching th >> there was electronic surveillance in terms of constantly monitoring their phone records, their computer

records and we also had a gps tracker on nunez's car for a while. >> what were you hoping to find with that? >> we justd wanted to determin whether in fact they were still together, if they were together at all. >> it looked like gil and linda were telling the truth. after t weeks after watching th, police found no signs they had been together since tom died. phone records also proved tom and gil were indeed friendly until the end, texting each other throughout that last giants game tom watched. and gil, like tom, was well respected around town. >> he worked hard and he was not interested in money as far as i could tell. >> a former patient of gil's always admired his generosity. >> does a lot of volunteer work in poor areas. >> did he say why? >>sa i think he's a man who car. it's as simple as that. he cares about his patients. he cares about people having

access to goodeo dental care. >> he was a member of the local chamber of commerce, a volunteer firefighter, voted one of the top hudson valley dentists five times and chosen to endorse products in online ads. >> i'm dr. nunez and i'm a practitioner in new york. >> it was a very thriving practice. we t were very busy. >> his office manager worked for gil for 13 years. >> he was always very positive, very upbeat, very kind. he's aki pleasure to work for. >> and everyone else police spoke to said the same. gil nunez seemed to have nothing tose wide. after weeks of investigating, there was still no clear cause of death. so all investigators could do is wonder if the love triangle was just an interesting story that had nothing to do with tom's death.o but that would all change when nearly two months after tom colemanto mysteriously died his

toxicology results finally came in, and they were a shocker. >> we find out that there was a narcotic, a conscious sedative called medazalam in tom's testimony. no one had heard of it before, at least in our field. >> youea had never seen it in a murder beforen or as a street drug or something people abuse? nothing? >> it wasn't a common thing. no. >> it's not a common street drug. >> but to investigators, the mosto interesting thing the medical examiner could tell them was this. >> it was only used in a medical field, either by dentists or a doctor in a an inpatient procedure. >> the fact that thisnp is usedy dentists -- >> it's just too many coincidences, shall we say, adding up, and they all come from gilberto nunez.

>> the dentist? >> the dentist. >> that put a whole new spin on their investigation. they wondered if maybe gil had used the medication to somehow poison his friend and romantic rival. >> it is put in coffee or juice orco some type of substance tha could mask the taste of it because it is a bitter taste. >> tom's autopsy showed liquid in his stomach that might have been tocoffee. >> we have a gentleman who is friends with the family. he's having an affair with the wife. drives the same type of vehicle that we have in that video next to our victim the morning he's found. >> this is nowe a murder investigation? >> yes. >> 100%. >> they called linda back down to l the station. >> they asked me if i knew what drugs were in tom's system.

they asked meem more about the relationship with gil. they asked me what i knew of that morning. >> they also decided to tell her about their suspicions, that they believe tom was murdered and that her ex-lover gil was their prime suspect. >> i found that hard to accept because in my mind, he loved us. he loved me. he loved tom. would he do that? would he do something like that? >> when i first found out and i'm in the roomt with the detectives and they were like, dond you think he could have? i was like, he could never do that to him. >> but afterafter, she realizede were signshe of trouble with gi. after several more talks with police, she began leaving details suggesting their triangle was far from stress free. gilss made it cloer he was maki long-term plans for them.

he even bought her a ring. >> we were having dinner and he proposed, and i said, i can't. >> how did he take that? >> well, i know. i know. i know you have a lot to get through, but, you know. i said, yeah, you are a little premature with that. >> did part of you want to say yes? >> i think in that moment i probably would have if i -- if i was single, yeah, i would have. >> it looked to investigators like gil was growing impatient, maybe eager to get tom out of the way. remember those texts to tom? she told police they came from gil. when she found out, she confronted ohim. >> i was absolutely furious. >> what did you say to him? >> i just screamed at him like, who in the hell do you think you are? why would younk do this? >> very devious. >> very, very. >> according to linda, gil cried, said he only did it because he felt tom should know the truth.

she said he begged for forgiveness and even threatened to harm himself. >> tom felt h bad that he felt suicidal. some was that kind of guy, you know? i knowf this is a really crazy situation we're in, but i'm not going to let him kill himself over it. work this out somehow. >> linda said she was still worried that gil was suicidal. that's why she decided to postpone telling him the affair was over until after the holidays. she seemed sincere, but investigators had to wonder if linda and gil plotted together to get rid of tom. >> coming up, linda under the microscope. >> she took a polygraph? >> yes. >>h? passed? >> i was home alone. >> this isn't the strongest alibi. >> that's no alibi. >> when "the good husband" continues.bi continues. how can i handle one more thing?

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to be done to my husband ever. and i assumed if i need to be eliminated, let's do it. >> detectives went so far as to check out linda at her job. she worked at a hospital where she might have had access to midazolam. >> we made sure all the midazolam that they had was accounted for during that time period. >> reporter: they also asked her to take a polygraph test. she took a polygraph? >> yes, she did. >> reporter: pass? fail? >> passed. so she was ruled out, in -- in our eyes. >> reporter: that left one person policed needed to talk to again, her former lover, gil. and this time, they planned to confront him with all their suspicions. >> right there we stop. right there we stop. >> a team of investigators took

turns confronting gill. they told him they had a video proving his suv was at the scene. >> if i look at you and tell you i know you were there. >> i think you are lying to me, totally. >> were you 100% sure that that was his white suv? >> was i 100% sure? i was 100% sure, but i could not physically give you a license plate to confirm that, no. >> reporter: and when investigators asked gil for his alibi -- >> i was home alone. >> okay. >> i'm always home alone. i live alone. >> reporter: he was all alone? >> all alone.

>> reporter: this isn't -- this isn't the strongest alibi. >> it's no alibi. >> no alibi. >> reporter: but what about the sedative found in tom's system? gil didn't know it, but while he was being questioned, police were at his office, executing a search warrant. and inside an emergency kit, they found two vials of midazolam. at first, gil denied knowing anything about midazolam, which also goes by the name versed. >> so you don't keep midazolam in your practice? >> what? >> midazolam? >> midazolam? >> yeah, versed. versed. >> no. we don't use versed. >> reporter: and with that, investigators thought they'd caught the dentist in a lie. they kept pushing, as gil tried to explain how the drug might have gotten inside that emergency kit. >> i don't go in there. i have never been in my emergency kit. because, whatever comes in the emergency kit, it's in there. >> okay.

>> so -- >> fair enough. >> so it's easy. that's easy. >> so by all means, your fingerprints certainly shouldn't be on it, then? >> on what? on my emergency kit? >> on your midazolam. >> oh, if i put it in there, yeah. >> then your fingerprints would be on it, because you put it in there. >> yeah. >> reporter: and when investigators asked gil about those text messages to tom, tipping him off about the affair, he had an explanation for that too. >> i would say, okay i'm going to try to figure out how to let him know. >> yeah. >> because if he was me, i want to know. i wouldn't be, you know, this. so i guess he took that as a sign of, like, courage and a sign of you know, my friendship. >> in one breath you're saying that you care about the guy. >> yeah. >> but, in a second breath, you want to get rid of the guy because you want to have a relationship with his wife. >> i don't want to get rid of him. there's no reason for me to get

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convinced dentist gil noneez murdered his best friend and rival tom koleman police called him in for questioning. now police turned up the heat. it's almost insulting when you say you are because if you were his best friend you wouldn't be [ bleep ] his wife and then sending text messages trying to break them up. >> i didn't send text messages to them to try to break them up. >> reporter: for nearly seven hours, investigators tried to rattle gil. >> [ bleep ] you. you're so full of [ bleep ]. telling me you didn't drive the car down the road. right there we stop. right there we stop. right there we stop, because your car was on the road, and you were driving it. everything else you said back there is bull [ bleep ]. >> reporter: through it all, gil stayed calm. and never asked for an attorney. >> i have nothing to hide. i have nothing with anything that is in my office or anything like that. i have nothing to do with whatever was in tom's system.

i had nothing to do with any of that. >> reporter: did you give him a polygraph, as well? >> we offered. >> reporter: did he take it? >> no. the next day after that interview, we were contacted by a lawyer stating that there'd be no further contact with his client. >> reporter: meanwhile, linda was reeling from all that police had told her. from the images of the white s-u-v in the video, to the drug in her husband's system that a dentist like gil would have access to. like investigators, she now believed her lover had killed her husband. >> i didn't ever wanna s -- speak to him again. >> reporter: but saugerties is a small place, and within days linda says she found gil waiting for her outside a chinese restaurant. >> he's sittin' in the parkin' lot and gets out of his car and starts screamin' at me and we'd get in a huge fight.

and he's, like, "they're tryin' to pin this on me and they say you were involved." and i'm, like, "i wasn't. you did this. get away from me." >> reporter: he was saying that the police were saying you were involved? >> and i was, like, "okay." you know, "liar," and he was, like, "i didn't, i didn't." >> referee:. >> reporter: but while both linda and the police were convinced gil was behind tom's death, investigators had no solid evidence. that grainy video didn't conclusively put him at the scene and they couldn't prove the sedative found in tom's system came from gil's office. the district attorney told his chief investigator they didn't have a case. >> we didn't have the evidence that -- that i felt or that my boss felt was compelling enough to put before a jury. >> reporter: but the investigation wasn't over. detectives were hoping they would find gil's d-n-a in tom's car and link him to the crime scene. while they waited for those test results, they let tom's family

know they were investigating the death as a homicide. tom's ex-wife, michele, called linda for an explanation. >> linda told me she had had an affair with gil. she was crying on the phone, crying that this had happened and she didn't use the word, responsible, but i know that's what she felt. >> reporter: tom's daughter jillian, who'd been close with her step-mom, was now furious. >> why would you do this, how could you be so irresponsible, just mad really and confused and trying to process, it took a long time to process. i stopped talking to linda at that point. >> reporter: linda's sister was also finding out about the the affair for the first time. >> she was just very sad and very upset. and i think embarrassed or ashamed for having been in a relationship other than her marriage. >> reporter: what did you tell her as the protective older

sister? >> it's not your fault. she's blamed herself from that moment on. you didn't choose this. people have affairs. millions of people every day. and no one deserves this. >> reporter: tom's parents were stunned by the new direction the investigation was taking. >> reporter: you go from thinking that your son likely died from natural causes to now there's a murder investigation? it just seems like something that wouldn't happen. >> just pilin' the crap right on top of you, right after another. >> reporter: to you. >> it was just, you know, what else are they gonna tell me now? >> reporter: did you call linda? >> no. >> reporter: why did you decide to just let it be with her? >> well, we were so devastated by the news, we didn't know how to deal with her. we didn't know what to think. >> if i called her and i spoke to her, i'm only gettin' one side of the story. my son's not around to -- to tell his side, or anybody. you know, so i figure, "well, if i ask her, i don't know what i'm bein' told." >> reporter: you must've been so angry.

>> we were angry. we were sad. but you know, you -- we've lost a son. nothin's gonna change that. but we just wanted answers. >> reporter: investigators wanted answers too. but when the d-n-a results came back, a new question was at the center of the case. >> that was not only important, that was a showstopper. coming up -- the new evidence. >> there were there was unknown dna on the belt flap. >> would it clear gil? >> it's not possible he would do anything of that nature. >> when the good husband continues. >> when the good husband continues. (man) ah! (burke) smart dog. with farmers crashassist, our signal app can tell when you've been in a crash and can send help, if you want it. it's new and one of many farmers policy perks. also, our signal app could save you up to fifteen percent on your auto insurance. (man) that's really something! (burke) get a whole lot of something with farmers policy perks. [dog barks] (both) good girl! ♪ we are farmers. bum-pa-dum, bum-bum-bum-bum ♪

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(hasan) no mo fo mo forever! i'm dara brown. here's what's happening. new jersey governor phil murphy announced 27 people were kill by hurricane ida in his state. that makes new jersey with the state with the most ida related deaths. according to "the new york times" at least a third fatalities were people who die in their vehicles. this comes after the supreme court declined to block a new texas law that effectively bans most abortions in the state. now back to "dateline." >> reporter: tom kolman had been found dead in his car, with his shirt loosened and his belt buckle undone. at the time, investigators didn't give his appearance much

thought, but almost a year later, it became crucial to the case. >> we got a dna report back from the lab that indicated there was an unknown male's dna on the inside of the belt flap of mr. kolman near the belt buckle. >> reporter: did you test this dna against gilberto nunez? >> yes. it was -- >> reporter: was there a match? >> not -- it was not his. >> reporter: no match? >> no match. >> reporter: where do you go from there? i mean, that is a -- >> that's a show-stopper. nothing moves in this investigation unless we can determine who that is. >> an unknown john doe. and that's a problem for me. >> reporter: holley carnright is the ulster county district attorney. >> i said, "well, we're not going to go forward with any indictment, we're not going to go forward with any arrest until i have the answer to that. investigators collected d-n-a samples from all the first responders to see if they could have accidentally left their dan dna at the scene.

and they considered another possibility that the dna belonged to an accomplice. >> we were also trying to get samples from people we had identified that were close to nunez. that's a little trickier -- because you just can't walk up and ask for the dna. we call it cast-off dna. and you would conduct a surveillance of those individuals and wait for them to discard an item that would most likely have their dna and then you collect that. >> reporter: what kind of items did you collect? i think there was a cigarette butt and maybe a can of soda. over many months, all the samples were processed, but it turned out to be a complete bust. >> it identified no one. >> reporter: it's not the first responders. it's not gilberto nunez. who is it? >> at that point, i was banging my head against the wall. >> reporter: linda was also growing frustrated. she was now a widow, a single mom, shunned by her husband's family and eagerly waiting for a break in the case. >> reporter: a lot of time passed without an arrest. >> torturous. >> reporter: every day are you

wondering, "is today the day or is it never going to happen"? >> you would kind of get through a point where you'd say, "okay, we're going to live our lives and when it happens, it happens," you know? and then they'd need something from me. and i'd get pulled back in again. >> reporter: one of those times police met with linda to explain there was a problem with the original autopsy. turns out it was incomplete because back then, no one suspected poisoning. many samples like the contents of tom's stomach that might have proved midazolam as the actual cause of death weren't saved for testing. so the da's office decided to do something radical. >> he said, "we need to exhume tom's body tomorrow." i just started sobbing. and i was, like, "oh my god. i feel like the man can never rest in peace, you know. >> reporter: in fact, the medical examiner exhumed tom's body twice to do additional testing. >> reporter: there wasn't just one exhumation in this case. there were two. why twice?

>> well we were going to do whatever it took to get the evidence that we needed. we're. >> we're still looking for a source or how it entered his body. we don't have an explanation for tat. there was talk possibly gil had treated tom for some type of abscess or infection in his mouth. so the medical examiner was looking in this jaw and mouth area for possibly an injection site we initially wouldn't have thought to look for on the first exhumation. >> did you find anything the second time around? >> in the tissue there was a concentration but no injection point. >> reporter: meanwhile, gil was free his dental practice thriving. the public had no idea he was a murder suspect, but he did confide in his staff. >> and i remember him telling us

that, you know, he was innocent and that we needed to just work hard to keep the, you know, the office opened. i knew the kind of person that he was. and it just wasn't possible that he would ever do anything of that nature. >> reporter: so gil's life moved on a year turned into two, then three -- >> it's been, you know, very hard for him. i think the only way he's been able to keep going is the fact that he knows he's innocent. >> reporter: he fell in love again and got married in the dominican republic. >> they were married on the beach. it was -- very beautiful. and with all his family. and closest friends. he was -- very, very happy. >> reporter: time was more cruel to the kolman family. brad, tom's son from his first marriage became depressed after his father's death and committed suicide.

he was just eighteen. >> brad made an attempt on his life with sleeping medications. and all i could say to him was, "why? why would you do this to yourself and to us?" >> and his answer was, "i just wanted to go to sleep and wake up with dad." three months after that, he did commit suicide. >> he just wanted to be with him. so he made a decision. >> reporter: at this point now, you have this affair, this horrible choice, that has now led to, potentially, to two deaths. >> it hurts, hurts a lot every

day. >> surreal. i remember just staring at the programs with his picture and bradley kolman and the dates and just like telling myself, "you're at brad's funeral right now." it became upsettingly familiar. i mean, i felt too comfortable at the -- at a funeral setting and i realized, "this is just not -- this isn't fair. i've -- i'm getting too good at receiving bad news. >> reporter: through it all, the d-a never gave up on tom's case. we're conducting these other parts of the investigation, we're developing video information. we're looking at the car, we're doing some pretty interesting things -- with regard to the vehicle.

>> reporter: but the unidentified dna was their biggest challenge. investigators gathered the brightest minds from the state crime lab to ask for advice. >> and one of them said, "have you checked the autopsies that were done before?" >> reporter: before tom kolman? >> before tom kolman. >> reporter: same day? >> same day. i looked at this person and said, "kind of always thought that was a sterile environment." and she said, "well, you should give that a check." so, we did. >> reporter: sure enough they got a match. turns out the dna belonged to the deceased male who'd been on the medical examiner's table before tom. so the dna had nothing to do with the case, but it did mean that some evidence had been contaminated. >> reporter: what are you

thinking when you hear that? >> well, i'm thinking a couple things. i'm thinking, "that's gonna be a problem at trial because of the contamination." but i'm also thinking, "thank god, we get a little break. >> reporter: and after all the additional testing, the medical examiner finally had a cause of death, acute midazolam poisoning. investigators took everything they had to a special prosecutor and argued they were sure gilberto nunez had killed the man he called his best friend. >> i don't think that nunez was ever a friend to kolman. not for a minute do i believe that. he is a master manipulator. he lives to manipulate. i believe he drew tom in because he wanted to be closer to the wife and have access to the wife. >> reporter: nearly four years after tom's death, gilberto nunez was indicted for second-degree murder. how did that feel when you got that news? >> i cried. we all cried pretty hard. it felt -- it felt good in that, you know, we're one step closer to justice for tom. >> reporter: but tough times were still ahead for linda. at trial, prosecutors were about to reveal new details about her affair. coming up -- another stunning affair. undercover agent? when the good husband continues. undercover agent when the good husband continues. y 'what ifs' were erased.

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>> reporter: four and a half years after tom kolman was found dead in his car -- gil nunez, went on trial for killing the man he once called his best friend. was there any doubt in your mind nunez went to see tom that morning with the intent to kill him? >> no doubt in my mind. ? there's no other viable explanation. i'm open for explanation or reasons or somebody else, but it's not there. >> did you feel you had a rock solid case? >> it was a circumstance substantial case going into it. there was no smoking gun, no eyewitness, there was no confession. but when you put everything together we knew we had a solid case. >> i was glad to see him being exposed for what he truly was.

>> reporter: the rest of the kolman family felt the same but were far from a united front. tom's parents still weren't speaking to linda and tom's daughter, jillian, had limited contact with her while in town for the trial. >> i just knew i had to be there for as much of it as i could be. i needed that closure and i wanted to hear everything that i wasn't being told for all those years. >> reporter: gil's supporters were also there -- his new wife, employees and several loyal patients. zach sklar was one of them. >> why did you feel the need to be there? >> we live in a society -- where you're innocent until proven guilty. i saw -- nothing that would lead me to believe that this could possibly be true. and so i went there to support him, to show him -- particularly because he is dominican in a very white area, that there are people who will support him. >> reporter: but the prosecution's case would be difficult for gil's friends to hear.

the state's theory, gil killed tom because he wanted linda all to himself. the special prosecutor summed it up on day one. >> ladies and gentlemen, obsession. >> it was an obsession furthered by manipulation and deception. >> reporter: to show jurors just how obsessed they believed gil had become, prosecutors read emails he wrote to linda. >> "i am not leaving you. not today, not tomorrow, not ever. i am not going to let you just walk away from me. never." >> reporter: linda took the stand and testified about how the affair began and lasted until right before tom's death. tom's parents couldn't believe the details they were hearing. >> we just assumed that it was a one-time episode between them. we didn't realize that it was ongoing for 11 months. we heard that in the courtroom. >> wow. that's amazing that you didn't know that. >> when you look back, you know, that first kiss, if she would've slapped him in the face or

kicked him in the nuts, it -- it wouldn't happen. >> you believe that this affair is the reason that your son is no longer with us -- >> well, yes, if he didn't come into their lives -- tom would be alive. >> reporter: in court, prosecutors portrayed gil, not just as a man desperately in love, but also as someone capable of outrageous lies. along with those anonymous text messages gil sent to tom about the affair, jurors also learned he sent texts to linda, posing as a woman named samantha. >> linda received some disturbing anonymous text messages from a person samantha telling her that tom and she, samantha, were having sex -- wild sex. >> reporter: and that wasn't the only fiction gil created. linda testified gil even told her he was in the c-i-a. >> he had an i.d. card and he said that he sometimes would put trackers in people's -- >> mouths?

>> mouths. >> did you believe him -- >> okay. yeah. i -- i didn't think that much of it, honestly. he kinda showed me a little card and i was like, "oh"! >> reporter: linda didn't make much of it, but prosecutors had another story they wanted the jury to hear -- a story they thought would show a darker side to gil's deceptions. >> "it's just not a good idea." >> reporter: nick monaco is a retired police officer and friends with a guy who worked for gil. nick testified that the friend came to him one day saying that gil wanted to pay them to go harass and intimidate tom. >> he said, "well, gil wants to know if -- you would want to accompany me to, you know, just kinda like scare the guy." >> and he goes, "we may pretend like we're from the c.i.a. or -- or something like that." >> "just as long as he -- he sees that, you know, you have a gun on you and -- and a badge." he goes, "if he sees the gun --" he goes, "you don't have to wave

it around or anything or take it out." >> and he says, "well, you know, gil was in the c.i.a." i was like, "no, i -- i -- i didn't know that." he goes, "oh, yeah--" >> did you believe that? >> no. and then, he pulled out an id that said, "the c.i.a." on top of it. it had gil's picture on it and his name. and then, it had this m -- badge in there that said, "special officer." >> the badge was -- was obviously, you know, from walmart or -- or kmart or something like that. it was definitely a fake. >> reporter: nick says he refused to participate and never heard about the plan to scare tom again. >> you have to wonder what -- what a juror makes out of all this. >> reporter: reporter james nani covered it for the local times herald-record. >> they're hearing about a love triangle, and poisoning, and death and homicide, and a dentist, and emails, and the c.i.a. >> reporter: police later found the fake cia i.d. on gil's computer and tacked on felony forgery charges. and on a computer server in gil's office, police found an internet search for the word

"midazolam." >> if thomas kolman had been sleeping -- >> reporter: the prosecutor suggested that gil, as a medical professional, figured out that tom's sleep apnea combined with the sedative could be a fatal combination. >> walk through your theory of what happened the morning of tom's death. >> the night before, i believe, gil and -- and tom had texted about meeting that morning. >> i think, at that point in time, gil wanted to meet up with tom because of the fact that he knew that he wasn't gettin' linda. gil got out of his vehicle and entered tom's vehicle. at that point, maybe he brought him a coffee. i mean, it's early in the morning. here -- "hey, bro. i brought you a coffee. we gotta talk." and a short time later, gil was driving away and tom was dead. >> reporter: but prosecutors faced a couple of obstacles. for one, the judge wouldn't let them use parts of gil's interview with the police

because he had not been read his rights, so jurors never saw how gil initially denied to police he'd ever heard of midazolam. >> so you don't keep midazolam in your office? >> what? >> midazolam? >> midazolam? >> reporter: and prosecutors still had to link gil to the crime scene. they wanted to prove the suspect suv seen at the planet fitness parking lot, belonged to gil. >> so we're able to track the movements of this vehicle through this gauntlet of cameras. >> reporter: grant fredericks is a forensic video analyst and was the key to making that connection. >> and we can begin to make observations of the vehicle itself and the pattern. >> reporter: police gathered additional video from nearby businesses to get a better look at the white suv. grant then pored through a database of 18,000 vehicles that's used by the fbi. >> each manufacturer, has a unique way of differentiating their vehicles. the length of the vehicle might be a big longer. the shape of the windows will be slightly different from manufacturer to manufacturer. >> reporter: fredericks testified that gil's car was as close a match as he could find to the one in the security video -- a 2010 nissan

pathfinder. and he told the jury, one more important detail. the suv in the video had a fog light defect, one that cast a distinct headlight pattern. >> what we're seeing from this vehicle is that it has this white light that is on the ground that moves in front of the vehicle. >> reporter: detectives tracked down gil's white suv -- which he sold a few weeks after tom's death and drove it along the same route seen in the security footage. >> and sure enough, when we went out to the scene then -- when we did our tests, we turned the lights on and there was the pattern that was quite visible. >> reporter: gil's car had the same defect visible in the video. prosecutors thought it was just what they needed to place gil at the crime scene and tie all their evidence together. >> that was a unique feature to that vehicle. and it was still exactly the same a year later. i have yet to find another

nissan pathfinder, color white, with those exact same issues. >> reporter: but of course, the defense was about to tell a different story and had witnesses in store that could destroy the entire foundation of the prosecution's case. coming up -- >> his heart was a ticking time bomb. >> was this even a murder at all? when "the good husband" continues. hey joshie... wrinkles send the wrong message. help prevent them with downy wrinkleguard. feel the difference with downy. your mission: stand up to moderate to severe rheumatoid arthritis. and take. it. on... ...with rinvoq. rinvoq a once-daily pill can dramatically improve symptoms... rinvoq helps tame pain, stiffness, swelling. and for some rinvoq can even significantly reduce ra fatigue.

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>> reporter: as gilberto nunez's trial for second degree murder played out blocks away from his practice, the dentist tried not to let it distract him from his patients. >> even during his trial, he would come and see patients in the evenings. >> some days were better than others. he seemed to be doing okay. >> reporter: patient zach sklar never wavered in his support. >> do i have doubts about his -- whether he murdered someone? absolutely not. >> why are you so sure that there's not a darker side to gilberto nuñez? >> i'm not sure about anything. i think there's a darker side to all of us. people are complex. but -- there's absolutely no evidence that the guy committed murder. >> reporter: in court, gilberto was represented by two heavy hitters from new york city, evan lipton and gerald shargel -- who had previously defended mafia boss john gotti. they argued that the

prosecution's case against their client was pure fantasy. >> they say that gil is such a schemer, but the plot they've described here, it's like something out of a bad lifetime movie. >> reporter: the defense said if anyone was manipulating things -- it wasn't gil. it was linda. they read her texts to gil -- sent the very weekend she said she was rekindling her relationship with tom. >> "i love you, i miss you. miss holding your hand. that soft spot scar on your face. mwah mwah mwah." can you just picture it? you're there with your significant other, she's behind you texting her lover? they weren't repairing things. >> reporter: so gil had no reason to kill tom, the defense said because he didn't think the affair was over. >> reporter: reporter, james nani. >> linda admitted on the stand that up to the night before mr. kolman died that they had

still seen each other, they had still spoken via text. i think that weakens the prosecution's narrative that there is an obsessive person that'll do anything to get this person, to get linda to go back into his arms. >> the defense was trying to say that you're telling tom one thing, you know, that you wanna patch things up, you're telling gilberto another, stringing him along. >> yeah. it was -- >> was there any truth in that, or did you feel that was unfair? >> no. there was some truth to it 'cause, you know, i -- i was stringin' him along. we were playin' his game so that he wouldn't kill himself over the holidays. so yeah, it was just a dirty, stupid game. >> reporter: the defense set out to dismantle the rest of the prosecution's case point by point. all that business about the

cia -- they said it was more like a joke, hardly criminal and irrelevant to the charge of second degree murder. and there was ample evidence that gilberto cared too much about tom to ever hurt him. >> tom kolman and gilberto nunez were best friends. did spend time together. did make plans. did talk about going into a business together. there was no motive whatsoever for this alleged murder. >> reporter: they stressed that none of the physical evidence linked gilberto to the crime scene. >> no dna, no fingerprints. >> reporter: as for that internet search for the word 'midazolam', the defense pointed out anyone in the office could have done it and they believed it revealed very little. >> not a search for a question about the drug. not how to kill with midazolam. a search that led to a wikipedia page. that search says nothing. >> reporter: as for the prosecution's star witness, the forensic video analyst who placed gilberto's suv at the scene, the defense said his findings proved nothing. >> even the expert doesn't say,

"oh yes, i see in -- in the video surveillance it was tom kolman with gilberto in the car." no, he didn't even see if someone went from one car to the other car. >> reporter: the defense raised another possibility about who was in the white suv. they reminded jurors, tom was found with his clothes disheveled and pants undone. and suggested that tom may have had some kind of liaison planned. >> reporter: an examination of his phone revealed that he had received an email from a hook-up website called be-naughty.com. >> the website that was found on his phone was benaughty.com, it was never the subject of any investigation in this case. >> the defense was essentially trying to throw some reasonable doubt into the equation. "what role does this have to play?" it was left as an open question. >> reporter: but their main argument, the prosecution couldn't prove that gil murdered tom because they couldn't even prove it was murder. they challenged the medical

examiner's conclusions, saying that despite all the tests, there was no way to know how much midazolam was in tom's system when he died. and the amount that was found didn't look like enough to kill him. >> the reality? his heart was a ticking time bomb. he might have dropped dead at any minute. >> reporter: the defense put on their own medical expert who said tom's death was more likely from natural causes. >> dr. sicirika. >> the defense was very succinct. they said they have one witness who looked over the records of mr. kolman, who looked over the autopsies of mr. kolman, and essentially says, mr. kolman had an enlarged heart, and that we think is the reason that he actually died." >> the prosecutors, the detectives, they want this medical testimony to show a murder. what it actually shows is heart disease, a likely heart attack. >> the prosecutor wants the toxicology to support a theory

of poisoning. what it really shows in a non-lethal dose of midazolam, a widely used, safe medication. >> reporter: as the case went to the jury, gilberto's supporters in court were more sure than ever that the dentist was innocent, but no one could be certain of the outcome. >> it doesn't matter if you're innocent or not. they can still sell you guilty whether you are or you aren't. you know, it all depends upon the jury. coming up -- >> did you both believe that was nunez's vehicle? >> i did. >> yeah. >> yeah. his car was there. >> a quick decision in the jury room and a storm in the courtroom. >> i wanted him to look at me. >> when "the good husband" continues. >> when "the good husband" continues. tmetrics. and our customers rated us #1 for network quality in america according to j.d. power.

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dentist accused of murdering his best friend was now in the hands of the jury. >> i was worried because, i mean, from day one, i had been told, "this is a circumstantial case and it's all in the hands of a jury. so while we will try our hardest and we do think it's a strong circumstantial case, we can never guarantee the outcome." >> what's the difference between that man that you got to know that you fell in love with, and the man you know now? >> the man i know, or see now is just a cold, dead heart who doesn't care about anyone but himself. >> reporter: tom's family hoped the jurors felt the same. >> i thought that the case went very well for us and that the defense didn't do a good enough job to place doubt, i was pretty confident at that point. >> reporter: in the jury room, 12 men and women got right into it. fran kwak and joseph dolan were two of the jurors who debated

the friendship between tom and gil. >> i believe they were best friends. >> you do believe that. >> oh yes. as odd as it may seem, they had a lot in common. they loved a lot of the same people. >> the police believe totally the opposite, that -- >> -- mhm. >> -- gilberto wanted to make you believe that they were best friends but they really weren't. so, you don't -- >> i wasn't so sure about that. >> what? about the friendship? >> that they were best friends. i mean, i just find it difficult to believe that. >> reporter: but if the friendship was confusing, they say the security video made one thing clear. >> did you both believe that was nunez's vehicle? >> i did. >> yes. >> we all said we -- that he had something to do with it. >> reporter: their deliberation didn't take long. after just 6 hours the judge announced there was a verdict. is that a good sign or a bad sign? >> i was back at police headquarters at the time. and, and mike had texted me. i was confident. i felt that a verdict was comin' in that soon, that they -- they would've decided it was

guilty. >> if it happens too quick, it's not good. if it happens too quick, it is good." there's no rhyme or reason to it. >> so at that point we started praying. 'cause we just were like, "this is it." >> mr. foreperson, how say you to count one, charging the defendant gilberto nunez, with murder in the second degree? >> find the defendant not guilty. >> is that verdict unanimous? >> yes, sir. >> reporter: not guilty. and not at all what tom's family expected. >> it was utter heartbreak. it was almost five years of hope and like the, the beautiful possibility of closure and leaving it behind, just taken it away. >> was that a tough blow for your family? >> absolutely. >> yeah. my family believes he had a hand in it. >> reporter: but of course, gilberto's supporter's felt the exact opposite, amazing relief. >> we were just crying all of us. we were just, like, clinging to each other and crying.

it was years and years of just not knowing what's gonna happen. you know, we were just so happy. >> i was pleased that he was found not guilty. clearly, the jury did feel that there was not enough evidence to convict him. i felt that all along. >> reporter: so how did the jurors come to their decision? some came up with their own theory. that maybe gil did give tom the midazolam, but not with the intention of killing him. >> from the very beginning, i believed that nunez was there at the scene but as a friend to help kolman get some rest that he hadn't been gettin', and that he left, and everything was fine, and he was as much surprised-- with tom's death as anybody else was. >> you formed that opinion right away? >> yep. >> first day? >> yeah. pretty much. >> reporter: as for the prosecution's medical evidence, they say it just didn't convince them of murder.

>> what did you feel was the strongest point on the defense's side? >> that the midazolam -- >> -- yeah. >> -- was not in a amount that could have or should have done any harm. >> i believe that it very well could have been just to help him sleep. >> and gil's behavior at the crime scene which investigators found so strange. >> that's how he expressed his mourning, his nonbelief of what was going on at that scene, as much oz they tried to make it seem like it was the oddest behavior for someone to be jumping up and down and wailing. i didn't find it odd at all. >> some people have criticized you for the six hours and change verdict time. >> because it was so quick. >> right. >> we could have gaup over for another six hours and read the same stuff over and over again and we would have come up with the same result. >> same result, exactly. >> she couldn't leave the courtroom without having the

last word. >> you piece of [ bleep ]. psychotic, sociopath. >> i lost it. i was like, gil, i wanted him to look at me. and i just felt like on the way out of the door i had to say it. he is a sociopath. do you get that? does anybody get that? >> although he was found not guilty of second degree murder he was found guilty of the two forgery related charges for the two cia materials. >> it's not what i wanted but he's not walking away completely free. >> after his conviction he declined to be interviewed on camera but invited us into his office. at the time he told us in an e-mail he felt sorry for tom's family and was angered by what he called the selective prosecution against him and was

extremely disappointed by the forgery convictions. months later he stood trial again in two unrelated cases and was found guilty of charges connected to insurance fraud and lying on a pistol permit application. for all three cases he was sentenced to two to seven years in prison. he served 18 months and was released in 2018. the gulf between linda and the rest of the family remains. tom's daughter jillian has found a way to stay close to ryan, her half brother but it hasn't been easy. >> i do forgive linda. i won't forget what she's done and the effect it's had on me. and she will probably never be close enough to me again to have that effect again. but i forgive her. >> after the trial linda told us

she was having a harder time forgiving herself. >> do you feel that guilt still? >> every minute of every day. >> i know things have been strained with tom's parents. is there anything you would say to them if they're watching this? >> just that i'm really sorry. but i understand why they hate me. i totally understand it. i live with those same feelings about myself every day. and to anyone that disses her,

anyone of tom's friends, her family, my family, everyone that's loved him for the role i played i'm deeply, deeply >> i'm craig melvin. >> and i'm natalie morales. >> and this is "dateline". my sister's dead. and i just -- sorry. i just kind of fell apart. >> inside a silent home, an eerie scene. water pouring through the rooms. >> you heard the water running? >> yes. it was just gushing.