a lot of it is common sense. that is it for our broadcast. you can join me tomorrow morning at 8:00 a.m. eastern here on msnbc and good night from msnbc headquarters here in new york. >> i noticed kim lying at the base of the bed face down. i saw zip ties tied around her ankle and feet. i still can't wrap my head around it. >> she was always helping others and now she needed help. >> had he been keeping secrets? >> what about a girlfriend. >> he was living two different

lives. >> maybe someone else had secrets too. >> up comes the menu. i start shaking my finger at it. that's not mine. >> i can do that. >> detectives have to look at every person, including me. >> there is something deep down evil inside of you to do something like this. >> a killer running out of time. >> he tells us things only the person that was there would know. s us things only the person that was there would know >> it was coming, swirling, spinning into a witch's brew of pure misery.

>> she wasn't afraid of a hurricane? >> no ma'am. >> was she an expert on what the damage of a hurricane can do? >> absolutely. >> there was a monster storm brewing often of the florida coast. not far from her home in 2012 and in the end it largely spared her state. but she locked inside the house and the gated community was still doomed. >> the kitchen was torn apart and her bedroom and upstairs. we didn't know where the struggles were happening in the house. >> it had come, another storm. different in nature. not in fury. it had blown down her door and through her world and without warning or a shred of mercy. fun loving, independent and l e

lovely. kim dorsey. no wonder derek dorsey fell for her and boy did he fall. >> the first time i laid eyes on kim i thought she was beautiful. >> did you express how you felt even in the first moment? did it get there that night? >> no. i waited until the second date before i told her that i loved her. i told her i loved you and the response was i like you a lot too. she was putting herself through school to become a civil engineer. seven years of dating passed before he popped the question. >> she got angry and got up and walkeda, way without even saying yes. i am like dear god. i made a gigantic mistake. i moved too fast. she gets over there. goes to her purse. she brings out the box. it is a long box.

she hands it to me. she said i thought you would try this one of these days. i am like dear god. what is it. a big no on a piece of paper or what is it? >> on the contrary was the bracelet with the letters yes. they were married almost a year later. >> how do you like the beer here? >> it is absolutely wonderful. much better than america. >> there is kim ever fearless trying her hand at the ancient sport of falconry. >> perfect. that's it. that's the one. >> this independent spirit seemed surprised to find herself no longer single. >> do it. >> not that married life changed her or either of them very much. he was a jacksonville firefighter and owner of a small general contracting business. kim got her degree and began

training building inspectors in hurricane prone florida. >> was she good at it? >> absolutely. she would have a class of 100 rough and tumble men. >> they were laser focused on their careers. >> you decided not to have children? >> at the time we were busy and felt if we were going to do it we wanted time to dedicate to it and never did. >> you did have your babies. >> we did. >> how many of them? >> three. dexter, duncan and gracie, took them to the dog park religiously every weekend, walks every day. that was her escape when she got bogged down. she would harness the herd and take them for a walk. >> kim's workload seemed to grow heavier by the day

started to get to her. >> it became increasingly difficult for her to turn work off. >> she went to see a doctor for depression. he decided to take a medication. >> did it work? >> absolutely. i said thank you for giving me my wife back. >> his relief did not last long. >> the cure became worse than the ailment. >> was it causing her to gain weight? >> that is one of the warning signs on it. weight gain. restless sleep. things like that. >> kim feared that stopping the medication too suddenly could make her more depressed. he said she was making plans to see her doctor. in the meantime it so happened that a storm, a brutal one called hurricane sandy had been heading north off of the atlantic coast.

>> how well did she know the anatomy of a hurricane. >> very well. being a civil engineer she knows what structures can and can't do. with her teaching and training of the inspectors she knew what had to be done to a house to protect the inhabitants. >> the super storm tracked east before barrelling north and into the history books. kim didn't have the weather or personal troubles on her mind. there she was friday, the 26th captured on super market security footage casually shopping and that night derek said the two watched a movie on their entertainment system that was just repaired. >> kim called it nasa. i would always have to get it to the place she wanted to watch. >> so many people can relate to that.

>> too many remotes. >> you had a sound person demeanor to help you out. >> i was trying to have him simplify it. saturday derek left his wife sleeping and headed to the fire station to begin a 24-hour shift. >> a large influx of people into the city. with the football game comes drinking and foolishness. car accidents. stuff like that. there are more people on the road. a i lot are alcohol involved. >> as busy as he was, he called kim later that day several times in fact. >> could you get ahold of her? >> no, i couldn't. >> that was strange? >> not unusual. a lot of times if she didn't want to be bothered she would put her phone in the kitchen. >> on sunday he headed home. after 8:00 in the morning.

as he walked into the bedroom, darkened by blackout shades he said he expected to crawl into bed next to kim but she i was not there. she was on the floor. >> i noticed kim lying at the base of the bed face down. >> what did you think when you saw her laying there? >> i didn't know what to think. i thought she fell and hit her head or had a few too many beers that night. but the closer i looked at her i realized she was bleeding. >> he said the firefighter in him went into action. he did cpr and called 9-1-1. >> soon the emergency call went out to derek's fellow firefighters. sirens blaring would be racing to the dorsey's safe gated community and into his home that looked like it had been hit by a

hurricane. coming up. what had happened to kim? had derek arrived home in time to save his wife. >> are you with her right now? >> yes, i am. >> is she awake? >> no she is not. >> i saw she wasn't breathing. >> did you think there was a chance that she might be alive. >> i didn't know. >> when dateline continues. t knw >> when dateline continues there he is. oh, wow. you're doing, uh, you're doing really great with the twirling. dad, if you want to talk, i have a break at 3:00. okay, okay. i'm going. i'm gone. like -- like i wasn't here. [ horn honks ] keep -- keep doing it, buddy. switch to progressive and you can save hundreds. you know, like the sign says. you have fast-acting power over pain,

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>> when derek dorsey called the 9-1-1 dispatcher that morning he said that he couldn't grasp what he was seeing. his 38-year-old wife, kim, lying naked and bloody on the floor. >> i rolled her over. i saw she wasn't breathing. i tried to give her cpr. >> did you think there was a

chance? a chance she might be alive? >> at that point i didn't know. i was go to give her every opportunity i could. >> are you with her right now? >> yes, i am. >> is she awake? >> no she's not. >> on the 9-1-1 call, almost like you are wearing two hats. the husband and you are the firefighter. did you feel yourself going back and forth? >> well, i wanted them to know that i was an off duty firemen. i knew there was something wrong. >> even as he begged for help he kept trying to revive kim. >> all i could focus on was giving her cpr. and after a couple of minutes of giving her cpr. i realized that she was already stiff.

and that she was gone. i told them she was signal 7. >> what does that mean? >> i basically pronounced her dead. >> so you think she is beyond any resuscitation. >> yes. >> rescue is on the way. >> you are the first responder. you see this happen to other people. >> i did not want anybody rushing to the scene to get hurt for someone that was already dead. >> you are used to saving people

and it is your own wife and you can't save her. >> yeah. >> how hard was that? >> after 15 years of going to gunshots, cardiac arrest and everything else and helping everybody else on god's green earth i can't help my own wife. that is like all of the training has been put to waste. >> his once vibrant and beautiful wife lay dead on their bedroom floor and he believed that he knew why. >> you have to tell me what she did. what happened. >> i don't know. i can't see. i am trying to figure [ bleep ] out. >> i thought she tried to hurt herself. >> derek dorsey was trying to tell county dispatch his wife committed suicide and thought about kim's struggle with her medication and the warning that came with it. >> don't take yourself off of

the medication and seek a doctor's advice on coming off of it. >> now he said that he felt kim ignored the warning. >> i had thought she tried to take herself off of her own medication. typical kim wanted to do it herself. >> she quit cold turkey. >> yes. >> within minutes of calling 9-1-1, derek's colleagues came to his aid. >> fellow firefighters and paramedics. >> yeah. >> what do you say to them. >> she's dead. >> you had a reaction to seeing them. your wife is laying there. what did you do when they got there. >> i covered her up with a comforter. >> was that the husband instinct? >> yeah. husband and fireman.

it is decorum. my wife is naked there on the ground. i have a half dozen people in the house. >> a call went out to the jacksonville sheriff's office. >> they will call me first. >> the assistant chief at the time t.k. waters. >> i will make the decision whether we are go to respond to the call or not. that happened to be one i knew we had to respond to. >> the officer on the other end was telling the detective about a woman's apparent suicide. >> naturally because it is a suicide we have to go and we have to make sure that everything lines up and looks like someone committed suicide. >> the detective figured the called be a quick one but he figured wrong. coming up. >> it was chaos. you can tell something really horrible happened here. >> people that commit suicide

don't usually miss. >> you can see the bullet holes in the wall. >> nobody could have done this to themselves. this is obviously a murder scene and one of the most who rhorrif ones i have seen. t who rhorrific ones i have seen to protect youg from fleas and ticks for a full month. this one little nexgard chew is the #1 vet recommended protection. and it's the only chew, fda approved to prevent infections that cause lyme disease. plus, it's safe for puppies. there's a lot of power in this one little nexgard chew. nexgard. what one little chew can do. saturpain happens.

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assistant keep t.k. waters was responding to a call about a possible suicide. as he arrived he was struck by

the neighborhood. >> it is a gated community east jacksonville, not far from the beach. beautiful homes. very nice neighborhood. not very easy to access. you have to have a way in. >> soon he was joined by his partner at the time who was always taken with the affluent community and the house itself. >> you raced to the scene and you came out to the house. did you see anything before you got to the house. >> yes. i saw a statue of a dog that was laid over in the bushes here. >> anything that was odd about it? >> just the fact that it looked out of place and it was tipped over. i took note of that and moved on. >> this is something that would become important later in the case. >> yes. >> you just didn't realize it at the moment. >> yes. >> he made a mental note and met

waters in the darkened bedroom. >> you see our victim lying at the foot of the bed. you can see, even as dark as it was in the room. the lighting wasn't good. it was just a scene that you re something horrible happened here. >> not far from where kim lay they saw a knife, saw specs of red on one wall and on another something that jumped right out at them. >> there had been gunshots in the wall. you can see the bullet holes in the wallet. >> officers found the bullet and a gun that fired them, a pink handle revolver that was tossed on the bedroom floor. >> a broken pool cue in the bedroom. what i called the fat end of the pool cue. >> as they looked closer they could see kim you was covered in bruis

bruises, clear she had not killed herself. >> there was blood all over the place. the condition of her body. no way could somebody have done this to themselves. this is obviously a murder scene and one of the most who revic ones i have seen. >> because of the amount of blood. >> the here is violence evident in this room. >> they continued to look around the rest of the house. they noticed the kitchen feet filled with tv remote controls and a cell phone. cabinet draws open, a floor used as an ashtray, all of that and the statue at the front door suggested a break-in. >> unfortunately at the time that kim dorsey was murdered i believe the community was leaving the gate open. >> assistant state attorney london kite was called to the murder scene that day. >> it wasn't as secure as someone saying come on in.

yeah. it you was one of those things where it could have been anybody. they could have walked through or driven through. >> the closer they looked at the house the more they thought it wasn't a random break in. >> somebody let themselves into the house or kim answered the door. >> if someone had come to rob the dorseys before killing kim they did a poor job of it. kim's yellow hummer i was in the drive way. the tv on the wall. >> big house. a lot of nice things. there were computers on the table. rolex watches. a watch case next to the bed. nothing of value seemed to be missing that we could see right there. >> it was kim's body that spoke the loudest to them. clear she was beaten savagely, bound with zip ties and likely

raped. >> this was such a violent attack on kim dorsey. did that tell you anything, just the level of violence? >> yes. it told us that there was possibly a connection between the person that committed the act and kim. >> that they perhaps knew each other? >> yes. correct. >> this was rage. rage. >> from passion. >> yes. >> the bloody scene made them skeptical about the story that kim's husband told the 9-1-1 operator. how can he believe she committed suicide. how can he believe that when you look at the crime scene. >> that was only one of so many questions they had for derek dorsey, a man they seemed with plenty of stories to tell. coming up -- >> he was living two different lives. >> a husband with a secret. >> i said what about a girlfriend. you got a girlfriend. he readily said there is a lot going on here. >> we had to figure out what was

his, you know, true passion. did he want to live with kim or did he want the seedier, darker side of his life. >> when date line continues. >> . allegra helps you say yes with the fastest non-drowsy allergy relief and turning a half hearted yes, into an all in yes. allegra. live your life, not your allergies. when it comes to parenting, you're a pro. you know reflexes are key.

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>> here is what is happening. president trump declared the coronavirus a national emergency freeing up $50 billion to help local state and local governments fight the virus. the house of representatives and the white house struck a deal for a coronavirus relief package that would provide testing and paid leave for some americans. the senate could vote on the bill early as monday. now back to dateline. >> derek dorsey sat in the back of a squad car staring at the crime scene tape surrounding his home, like rubber necking at

someone else's tragedy, waiting for the nightmare to slip by. he said that he kept trying to piece together what happened. later he went with officers to the station for questioning. >> he said the husband seemed willing to answer all of his questions, starting with how he left kim that saturday morning. >> you left the house yesterday morning. >> about 7:10. >> shift started 8:00 saturday. >> his alibi is that he is at work. he does work for the fire department. they work 24-hour shifts. start at 8:00 and work until the following morning at 8:00. >> a story easy enough to check out. the detective asked derek how he found kim when he got home. >> go n straight to the bedroom.

opened it up. there she is. >> did you touch her or anything? >> no. i touched her. i turned her over. >> he was upset. did he break down? not as much as some people would. >> he said that he believed kim had committed suicide and told county dispatch she cut herself. >> she has a gun of her own? >> yes. >> semi automatic? >> revolver. >> where is it normally kept? >> in the drawer that was open. >> did you open that drawer? >> i don't think so. absolutely. i thought she shot herself. he explained kim was battling

depression and side-effects from the depression. >> when is the last time you and kim had sex. >> a while back. >> when you say a while back. >> weeks. >> derek dorsey had something else to reveal. >> either one of you stepping out. girlfriend on your behalf. >> he readily said there is a lot going on here. >> derek just admitted he had been unfaithful to kim. >> a big, big red flag. >> the assistant state attorney was listening in on the interview from another room and hearing a possible motive for murder. >> he was living two different lives. we had to figure out what was his true passion. did he want to live there with kim or did he want the seedier darker side of his life. >> there was another fact that he couldn't overlook that he did

the unthinkable at a crime scene. >> was she covered up when you got there? >> no. she was naked on the floor. >> you covered her. you pulled that on top of her. >> yeah. >> that is important to us. >> the thing that he did that was uncharacteristic of someone that is a first responder that goes to scenes like this, he covered her body with the bedding, you know. you wouldn't want that to happen in a crime scene. >> to the investigators it was possible that derek dorsey tried literally to cover up evidence. everything they were hearing led them to wonder had he killed his wife. by then the line of questioning seemed to weigh on derek. >> i am not stupid. that means you are thinking certain things.

>> did you worry that they might think it was you? >> i don't doubt that they did think it was me. but there is no way i could have done it. >> even as he sat in the interview room detectives outside of it were checking out his fire station alibi. >> did his alibi check out? >> yes he was. he spent the whole day at work. there other than phone calls he made to kim that went unanswered. but that you was not unusual. >> surveillance footage supported that account. it showed the truck in the gated community. derek wasn't off the hook. investigators thought he still could have had something to do with kim's murder. >> that is why we wanted to look at his phone records to see who he was contacting. >> as investigators tried to size up the man before them, officers canvassed nearby

homeowners. a neighbor had seen something. >> he remembered a car pulling up in front of the dorsey's house. nothing unusual to him. >> a mysterious car, a husband that might or might not be involved. a victim that likely knew her killer and a house that was ready to tell investigators a whole lot more. coming up. >> we found that her nose had been damaged. so to me that meant it was a sucker punch. >> a rare look at a crime scene inch by inch and minute by minute through the eyes of an expert. >> she is zip tied. got the gun out. >> her attacker you believe was -- >> she saw or heard and fired off five shots. >> she missed. she missed.

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>> as detectives interviewed derek dorsey downtown -- >> did you text her yesterday? >> their colleagues were searching for clues across town. assistant state attorney, london kite. >> this was a real puzzle. >> it was. >> the kitchen was torn apart. the drawers were pulled out.

the electronics were in the scene. the bedroom torn apart. we didn't know where the struggles were happening in the house. >> soon they would. they believed that kim died sometime saturday morning not long after derek left from work. her cell phone had stopped receiving signals. >> you knew she was alive to a certain point. >> kim had died of blunt trauma to the head and single stab wound to the neck but officers like detective karen smith that helped understand how the crime unfolded. >> the first thing that i saw was an impact pattern here on the wall that we recreated with stickers. >> smith, a blood stain pattern analyst followed the trail of kim's blood in the bedroom, speck by speck using string and

3d diagrams. she believed kim had gotten out of bed when the attacker barged in. >> we found that her nose had been damaged. to me that meant it was a sucker punch. >> where would she have been standing? >> right about here. >> something you believe hit her in the face. >> it bleeds heavily, quickly. your eyes water. you can't see. >> this first blow she said would have brought kim down by the side of her bed. >> she is down here on the floor. there was a large saturation stain here on the carpet. she was down here for quite some time. >> blood found on the nearby wall and marks on the body suggested she was struck repeatedly and so forcibly that she probably blacked out and

believe that kim was bound by the wrists. giving kim's attacker time to step out of the bedroom and into the kitchen that laid beyond. drawers randomly opened indicated that someone was rifling through the room and that gave kim time to free herself and do something incredible. >> opens the draw. she got the gun out. she aimed. can't see well. she has been punched in the face. she fired the gun five times. went through the door jam and up into the ceiling in the kitchen. >> her attacker -- >> she saw or heard and fired off five shots and missed. she missed. >> even then she said kim did not give up. she is able to move. leaves the area. she has the gun in her hand. as she moves around the gun is

tossed and found underneath the bed here. useless to her. empty. >> blood traced kim's desperate path to a window. >> we know she is opening the curtains. there are transfer and saturation stain it is on the curtains. she has opened the blinds. there is blood on the window. she is clamoring to get out of the window. this could have been her escape but unfortunately he came back. >> the man probably grabbed kim as she tried to escape and beat her to the floor again with that pool cue before stabbing her once in the neck. >> there was a very, very large saturation stain on the floor and the knife was found next to it. this is where ultimately she lost her fight. >> the scenario told investigators about kim's brave but doomed struggle. but it also told them about her killer. zip ties on the wrist and the

pool cue on the floor appear to have come from the home and the knife matched a set from the kitchen. >> he would know the house. up stairs and downstairs too. >> someone that might possibly know where the zip ties are. >> yes. and also know the habits of kim dorsey, that she is a late sleeper. she sleeps pretty hard was my understanding too. >> one man, derek, knew all of that but there were others that did too. a friend that worked construction jobs for him and even lived with them for a time. his name was lance kirkpatrick. >> i made the comment lance would have taken a bullet for kim. you guys are wasting your time. talk to him. you'll know where i am coming from. >> lance not only wouldn't kill

kim but couldn't. derek said his friend took a new job. >> shrimping. >> at sea? >> miles away. >> derek gave detectives another name and this man had been in the area that week in jacksonville and in trouble. coming up. >> did kim ever come on to you? >> no. >> little bit maybe? >> i wish. >> a suspect that seemed infatuated with kim. >> ever have sex with her? >> i wish. >> and a history with police. >> did it make you question him? the guy on the radar was just in jail. >> does he need something. does he need money. >> when dateline continues. ey >> when dateline continues protect your pet with the #1 name in flea and tick protection. frontline plus. trusted by vets for nearly 20 years.

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>> investigators were untangling the mystery surrounding kim

dorsey's murder and knew the killer was familiar with the home. her husband derek fit the bill but had a strong alibi and willingness to share everything and even his infidelity. >> husbands that are suspects try to hide all of those things. derek started to expose the darkness that was inside the beautiful house. >> was kim aware this you was going on? >> i don't believe so. if she was she never let me know. >> did you worry how it might look to the detectives? >> i didn't care. they asked if i had any relationships on the side and i feszed up to it right then and there. that was the least of my worries knowing that i did that. >> still, investigators couldn't overlook the possibility that derek had hired someone to kill kim. >> did you worry that you could

have enlisted help? >> no. >> hired someone? >> no. i knew i could account for my whereabouts. no. >> he said he was an open book with investigators. in fact when they asked if anyone else knew the layout of his own beside his pal, lance, derek gave them another name. joshua veal. >> josh was just someone that needed a job. didn't have a whole bunch of construction experience and everything. i always needed someone to help clean up and straighten up the job sites and stuff. >> he gave joshua work in the general contracting business he ran on the side and later a place to stay. >> we saw a young man that needed direction and tried to help him out the best he could. >> for a few months joshua lived with the dorseys but joshua took a wrong turn.

>> josh decided recreational pharmaceuticals were more fun than working in the hot sun every day. >> it must have been really hard to you. >> people have to make their own mistakes in order to learn. >> he told joshua to leave but still friends. he said i need to do some work. he did a good job when he showed up but he could not get rid of his advice. he was released one day before kim was murdered. that got the detectives attention. >> did it make you question him? he was just in jail. >> yes. does he need money or something. >> joshua was kicked out of the dorsey house. >> yes. >> he could be angry. >> not the best houseguest. >> there was more. and to detectives it was explosive. derek said on that sunday morning he stopped at a gas station to pick up joshua for a

job but joshua never showed. >> at that point we sat out trying to put our hands on joshua. >> nobody knows where he is. >> correct. >> is that a sign he didn't show and now nobody can find him. >> absolutely. >> right around the time kim dorsey was murdered. >> the morning he -- later that same day derek told investigators joshua just called and the two arranged to meet a local restaurant. >> we were waiting on him. soon as he got out of the car. i introduced myself to him. said we needed to have a talk. >> this is joshua veal. he remembers that moment differently. >> were you scared? >> yes, ma'am. six or seven undercover cars pull up to ask about you. tend to get a little nervous.

the talk took place downtown at the sheriff's office. the officer did not mention kim's murder at first. >> did it feel like it wasn't a friendly conversation. >> yes, ma'am. >> like you were being treated as a suspect time. >> i was under the impression i was treated as a suspect for something. >> you spent friday night at the house? >> yeah. >> you didn't go anywhere friday night. >> no. >> he said he spent the weekend with friends. >> did you watch a football game? >> think i did. >> anybody up that can vouch. >> probably so. >> they asked why he didn't show up to meet derek for work that sunday morning. surveillance showed derek at the station but not joshua. >> i slept in. >> did he call you and chew you out? >> he was cussing me like --

>> finally the investigators asked about kim dorsey. they wanted the 21-year-old to explain his relationship with the 38-year-old woman. >> how did she look? >> would you ask me if i would hit it? >> eight. >> kim ever come on to you? >> no. little bit maybe? >> nah. i wish. >> ever have sex with her? >> no. i wish. >> what he revealed about kim was interesting. he almost had an infat wagz with her. not just she was my boss' wife but someone he had a romantic pull towards. >> he is going up. >> now the detective was ready to drop a bombshell. >> i brought up kim. why we were talking. >> i have bad news. something happened to kim.

>> i just talked to derrick 45 minutes ago. he is like no. he was unaware she was dead. he took it like you told him his mother died. >> she's dead. >> told tell me that man. oh, not miss kim. >> did his emotional reaction to her death, i was that enough for your gut to say not sure he is our killer? >> it was for me that the point. don't eliminate him completely but set him off to the side. >> i am trying to find out. i need to know if you know anything. >> i wish. >> somebody that might try to hurt her or hurt derrick.

>> bro, i promise you. i promise you that man. >> that was a good woman. you don't know. >> i am sure she was. >> there is just about anybody out there that could be the suspect. >> days past without an arrest and the jacksonville's sheriff's office asked for help. >> because of the lack of witnesses, the physical evidence, nothing has led us farther today in identifying or leading us to a suspect than we had that sunday morning. >> but there was another piece of evidence. it had been right inside the house all along, hiding in the dark just waiting for someone to come along and push the right button. coming up --

>> it was one of the moments where the hair would stand up on the back of your neck. >> an x-rated clue. >> there is no way that's mine and no way kim would be looking at that. i look at the dvd player saying that is your murderer and that is who was in my house. murderet is who was in my house zombie tomorrow. wrong. i'm taking a powerful nighttime cold medicine, so i can sleep great and wake up human. don't eat me i taste terrible! mucinex nightshift cold and flu. fight your worst symptoms so you can sleep great and wake up human. with this one little nexgard chew comes the confidence, you're doing what's right, to protect your dog from fleas and ticks for a full month. and it's the only chew, fda approved to prevent infections that cause lyme disease. nexgard. what one little chew can do.

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days after finding kim's body, detectives crossed one flame off their suspect list. they looked into joshua's alibi and it checked out. >> josh was just open the north side of jacksonville. >> nowhere near the dorsey home as far as they could tell. kim's husband derek, likewise, had a solid alibi. but detectives still weren't sure what to make of him. they knew he was an unfaithful husband which gave him a positive moat zblif at this

point, were you able to rule out derek dorsey? >> absolutely not. he could have definitely had somebody setting this up. >> then again, if he had hired someone to kill kim, why was he acting so darn helpful? >> derek's calling me daily. obviously there are times i had to call him, you know, to get some information about things at the house, you know. so, yeah, he's cooperating. he's doing everything that i'm asking of him. >> finally, officers and technicians were done processing the crime scene and derek could return to the house. >> so the night we go to turn the house back over, i think it was halloween, the 31st. >> they hope the walls might talk to derek, might reveal something officers had missed. >> part of the turnover back to him was to bring him out to the house to have him look around, walk us through the whole house, show us anything that maybe was out of place that we missed as investigators, the evidence technicians, to say that's not right. >> as it turned out, the house wasn't just speaking to derek, it was practically shouting.

>> the blood's still on the floor. plate's shattered on the ground are still there. at that point, they wanted me to try to help piece together things. and i'm noticing everything, everything, you know, is wrong, this is here. i don't understand why the damn remotes are in the sink. >> the detectives showed us what happened when they ushered derek into his tv room. >> so we were standing here and we asked derek, can you turn on the tv? so derek, you know, he comes in here -- >> why? why did you ask him to turn on the tv? >> well, we had never -- the tv wouldn't on when we got here, and we had found all the remotes in the sink. so we just wanted to see how it worked. >> the moment i turned it on and changed the input to the dvd player, up comes the menu for a porn video. at that point i start shaking my

finger at it going, that's not mine. there's no way that's mine and there's no way kim would be looking at that. and i look at the dvd player and i'm going, that's your murderer. that's going to be who was in my house. >> that's a creepy clue. >> as soon as i into that you, i knew they were going to be able to get him. they were going to be able to find out who there did to my wife. >> it was one of those moments where the hair would stand up on the back of your neck. because to have that video in there and having derek here saying that's not mine. so it automatically raises an antenna and gets you curious. >> but it wa of was what derek said next that really got their attention. he told them the man whoin stalled that complicated entertainment system, the one kim nicknamed nasa had been there to make repairs the day before her murder. >> so he would have known where the kitchen was and everything. also it an open floor plan in the center. but he would have had a

familiarity with the house. >> derek told the detectives that the installer, a man named j.r., could be the person they were looking for. >> in my mind, that was a very strong possibility it was him. i had known him before. he worked on another house i had done. i had had no reason to think that. but that was the only possible, logical person that i could think of who done it. >> so who what would his motivation be? >> stealing the system that he just tweaked. i have really no idea. >> was there anyone else who knew how to work the entertainment system? >> no. >> i mean, who else would be handling the remotes when he's tooling a surround sound system and then throw them in the sink to get the evidence off it? all those things come into play. >> so detectives make a surprise stroits this j.r. where he work. >> i come back and there's a couple detectives here at the shop wanting to ask some questions. >> at that point j.r. said he

hadn't heard about kim's death and detectives were vague about why they needed to talk to him. initially, he thought they simply wanted information about his client, derek dorsey. >> they said, do you know derek dorsey? i was like, yeah, he's one of our customers. he's like when's the last time you were at the house? i told him i was there friday or whenever it was. >> they also asked him if he knew anything about kim. even then he said he had no idea why the police were so interested in the dorseys. >> she was very sweet. very nice. she would always -- i only saw her a couple times. >> one of them was that friday. he had been called to the dorsey home to fine tune the entertainment system. while he was there, he noticed a chill between the husband and wife. >> i remember she walked -- she walked by and said, hey, guys, i'm headed to the gym. i said okay, we'll see ya. and derek didn't say anything to

her. so just -- i thought that was weird. i was like, uh, you don't say bye to your wife? by guess he was more interested in getting his electronics fixed, i guess. >> because something must have jumped out at you. first of all, you don't even know this couple very well. >> kind of weird. they didn't have a very -- to me, i never saw an affectionate kind of relationship, you know, between the two at all. >> as the detectives listened to j.r., they took in what he did for a living. they noticed the wires and cables he worked with, the tools he used. more importantly, they noticed his hands. coming up. >> he's got cuts on his hands. and i'm thinking could these be defensive wounds from when she was hitting him if he was the killer? >> and something interesting in his toolkit he worked with zip ties? >> yes. >> what are you thinking about the sound man? can you cross him off your list? >> we think he's a possibility. >> when date line continues. a >> when date line continues. n sr

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the man who had been inside the dorsey's home the day before the murder said he had no idea why detectives were asking him about kim, derek, and the lay joust their house. >> i was like, yeah, i know kim just by being in the house and doing their installs. >> the entertainment installer j.r. said he thought derek gave his wife the cold shoulder, especially that i friday as she headed off to the gym. >> he just sensed there wasn't a strong, loving relationship. >> other than that, he said he didn't make much of the investigators' questions, but they found a lot in his answers. they thought it possible j.r. had sensed an opportunity with kim. >> did he have the hots for her? did he show back up on saturday morning? he would have been there friday night, felt maybe he would go over saturday morning. remember, he doesn't think they're in a loving relationship. does he go back thinking, hey, you know what? i have some opportunity here

with her. >> they wondered, had j.r. come calling on kim only to get a chilling reception? had detectives set him off? detectives got to the point they asked j.r. if they had heard about kim's murder. his reaction seemed calm, too calm for the prosecutor. >> what did that tell you, that he wasn't overly emotional about the news? >> that could be, you know, a sign that he's more involved. a person, like, that committed this type of crime, obviously they're cold blooded. >> but it was his hands more than his demean thor that reall heightened their interest. >> he's got cuts on his hands. thinking could these be defensive wounds from when she was hitting him, if he was the killer. >> they asked about those scratches. j.r. said he got them on the job handling wires and plastics. >> he also worked with zip ties? >> yes. >> yes. >> what are you thinking, then, about the sound man? can you cross him off your list. >> we're thinking he's a

possibility. >> more than the possibility, thought the prosecutor. >> he many scratches. he had injuries to his hand, which, you know, from kim's body we knew that she fought for her life. she was engaged in a tremendous struggle. so he said that was just something he got, you know, during the course of his job. but obviously as an investigator you want -- you're seeing the other side of that. is he just making an excuse? >> so there are some things they're seeing that could potentially be tying him to this crime? >> absolutely. >> they just need to find out more? >> yes. >> the detectives asked j.r. where he'd been the previous weekend when kim was killed. he explained'd be he'd been aro town. even a local ball field. >> did you feel like their questions were getting more intense? did you feel like you were in the spotlight. >> i didn't. i was thinking more about the situation they just told me happened. >> it wasn't until the detectives left that he had that light bulb moment. they weren't looking to him for information, they were looking

at him. >> did they -- were they think that might have been scratches on my arms from something like that? that crossed my mind. that probably botheredmy mo me than anything in the whole questioning. >> kim fought for her life. she fought hard. and whoever she was fighting with would have had scratches on them. >> yeah. >> no doubt. >> right. >> he also thought back to how he'd answered their questions about the murder and about kim. >> did you have that little moment where your heart's beating like, i was just there, i hope they don't think i had anything to do with this? >> they said she was murdered saturday, or something like that. i was like are you kidding me? i was just there friday night. they even asked me do you have any relationships with her? i was like, no. they asked me did i kiss her. did i do anything? i was like, no, nothing like that. >> did you know derek had been pointing the finger at you? >> had no clue. >> he was telling the police

that he thought you could be a suspect. >> that's interesting. i had no clue. >> if anything, he saw derek as the most likely suspect. >> he seemed like a very short-tempered kinda guy. we'd been in his house, he gets amped on certain situations, gets excited. you could tell how he just kinda like short fuse kind of thing. it crossed my mind, yeah, because usually i do think it's someone very close to them that does this stuff first. >> still, j.r. said did he his best to cooperate fully with the police. >> did they take your dna sample? >> they did. right here in the office they did. i volunteered, i was like absolutely, no problem. >> that has to be unnerving too, though. >> yeah. >> fingerprints dand a mouth swab and all that. i've never had that my whole life. i've never been arrested in my whole life. >> there's a lot of things that might make the police look at you. >> i can see that, yeah. >> that's not a great place to be in. >> no. >> but he wouldn't there long. by then, a police report was

making its way downtown through the sheriff's office. it was about to change everything. coming up. >> you're going from person to person to person, but no arrest. >> no, not yet. >> are you getting a little frustrated? >> could a stolen car help solve a murder? >> did you find it on the video? >> yes. >> in the gated community the day that kim dorsey was murdered? >> yes. >> that's huge. what that tells us is he's in town. >> what dateline continues. in town. >> what dateline continues. hi. uh, can you tell me how to get to i-70, please? o-okay, are you --

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national emergency and said 1.4 million new tests would be available next week. now back to dateline. when the detectives got back to the station, they reviewed what they had on j.r., the entertainment system installer, his alibi, his dna, his scratched hands. but soon they had something else -- doubts. >> he installs sound systems. and so, you know, he's always working in tight spaces and that's how he's cut his hands up. >> reporter: did you believe him? >> it's believable. >> yeah, it's very understandable. i mean, with the kind of work that he does, you could see his hands getting cut up. >> reporter: and they learned that j.r.'s alibi for the weekend kim died checked out. two men, josh way veal and j.r., the installer, were now off the suspect list. you're going from person to person to person, but no arrest. >> no, not yet. >> reporter: are you getting a little frustrated? or are you just following the trail?

>> just following the trail. because the trail -- it tends to -- tends to start narrowing after a period of time. we felt like it wasn't going to be a situation where this was going to go unsolved. there was just too much, too much information for us to follow up for that to happen. >> reporter: optimism alone doesn't solve crimes. hard work, of course, does. but so, too, can luck. a stolen car doesn't usually fall into that last category, but it did for investigators in this case. >> there's a lady here in jacksonville, she reports her car stolen. the report is written by a patrol officer with the sheriff's office. eventually that report gets, you know, goes through the channels. >> reporter: where it might have gone largely unnoticed if not for an eagle-eyed crime analyst who saw the name of the suspected car thief listed on the report. >> lance kirkpatrick was listed

in that report as possibly stealing this car. >> reporter: an suv? >> suv, yes. >> reporter: lance kirkpatrick, as in derrick's good friend, employee and houseguest. the man derrick said would take a bullet for kim. lance kirkpatrick is the one person you haven't been able to talk to? >> that's correct. >> reporter: derrick had also insisted that lance had been on a shrimp boat all week. now a police report was challenging that story. what does this mean to you? >> what that tells us is he's in town. he's not on a shrimp boat. now we're picking up steam again. that helped us go in the direction that we needed to go in to put the pieces of this puzzle, the pieces of this case together. >> reporter: the woman said someone had taken her car in the early morning hours of october 27th. only he never came back. where is lance kirkpatrick? does anyone know? >> not at that point. >> reporter: any friends or family who had any idea where he was? >> no. we talked with his father and

grandmother. they hadn't heard from him. him and his father had a -- wasn't the best relationship. so it wasn't unusual that they wouldn't hear from him for a period of time. >> reporter: suddenly, they remembered the neighbor who saw a small suv the day kim died. his description matched that of the stolen vehicle. detectives wondered if cameras outside the dorseys' gated community caught the car coming or going. did you find it on the video? >> yes. >> reporter: in the gated community the day that kim dorsey was murdered? >> yes. >> reporter: this is your huge moment in this case. >> yes. >> yes. >> reporter: but the video didn't reveal who was driving the suv. and they also weren't sure if the woman who reported it stolen, a known drug user, was telling the truth. >> things like that, unfortunately, aren't uncommon for, you know, people that are addicted to drugs to kind of trade their car for drugs, so we weren't really sure about that whole situation.

>> reporter: even so, they needed to find lance. >> so i called the coast guard to see if there was anything that when the shrimp boats go out, if they file a manifest of any kind of who is on board. and they don't. >> reporter: it's not something that you can radio each boat and say, hey, is lance kirkpatrick on your boat? >> correct, yes. >> reporter: the search for lance did lead detectives to another man, an acquaintance named brian. he'd been at the same house party when the suv disappeared. there was someone else who also had access to that suv potentially. brian kiefer? >> yes. >> reporter: brian kiefer, aka, money. brian's nickname is money? >> yes. >> reporter: do you know why? >> he said that's what, you know, the drug dealers call him. and i believe it's probably because he is a boss. he owns his own company. and he runs in those same circles of people. >> reporter: brian ran a

building renovation business, but he also had a criminal past. troubling to you? >> yes. it's always troubling when you know they have records and they're doing things that are outside the law. so that's always a concern. >> reporter: did you think for a moment that possibly he might have done this? >> yes. everybody -- once again, everybody is still on the table. we don't know who did it. >> reporter: and unlike lance, who either was or wasn't on a shrimp boat, detectives learned that brian had been spotted in jacksonville recently. now they wanted to talk to him. coming up -- >> brian tells us some things that only the person that was there would know. >> but couldn't that make him a suspect? >> could. >> and he also reveals something else. what a friend told him. >> reporter: what is he saying? does he say that she was dead or anything like that? >> he said the lady was saying,

stop. you're killing me. >> reporter: when dateline continues. >> reporter: when dateline continues. lips are like no oth, and need a lip routine that's just right for you chapstick has you covered chapstick. put your lips first.

detective larry kuczkowski needed to find lance kirkpatrick and a man named brian kieffer. the first one they found was brian at a mcdonald's. so he gets completely ambushed at the mcdonald's? >> yes. >> reporter: soon brian was in custody at the sheriff's office sitting down with a detective and prosecutor london kite. >> can i stand up? >> if it makes you feel better. >> well, brian comes in and basically he's real animated. full of energy that night. >> reporter: they asked brian where he'd been the last weekend of october. >> i want to direct your attention to florida/georgia weekend. do you remember that weekend? >> yes. >> reporter: brian told them he was at his place. and, yes, he had company. >> it's lance kirkpatrick, but there is a middle name. >> and he goes by the nickname

of l.j.? >> l.j. >> reporter: and he told them lance had been at his apartment that friday night, partying. he said lance had borrowed someone's small suv to buy drugs and never came back. >> i spent $480 for about four hours of riding around in a cab looking for l.j. everywhere he'd been to, went, everything. >> and were you able to find him? >> didn't find a trace of him. >> reporter: it wasn't until a day later, sunday, that lance called him, begging to meet at a gas station. brian said he immediately noticed lance's hands. >> you noticed i guess that his hand was hurt at that point in time. do you recall what hand? if you don't, it's okay. >> i thought it was a left, but i know he hits with his right. so i just -- >> if you can't recall, that's fine. >> i can't recall. that would be the better statement. >> but you did remember that he had an injury to one of his hands? >> yes. >> reporter: brian said he was unprepared for what lance was

about to tell him. >> he tells me that he murdered somebody and just pretty much is going to prison, and there's nothing that can be done about it. and i'm saying, i said, what do you mean you murdered somebody and your life is over and you're going to prison? and he was like, i'm going to prison. >> reporter: he thought lance was making up stories. but a few days later, lance revealed details of his crime. he said he had let himself into his boss' home, only to be confronted by the man's wife. when she picked up her phone to call for help, he panicked. >> he said i took her cell phone and i told her to get out of my way, that i just wanted my stuff. >> reporter: from there, brian said the argument quickly turned violent. >> pretty much just goes into -- i don't know whether he hit her with that pool stick, but he kind of emphasized swinging the

pool stick. >> okay. >> and then he emphasized being shot at five times. >> reporter: the story was so awful, so incredible, brian said he didn't think it was true. yet, investigators did. they believed brian had just described the murder of kim dorsey. >> and i told my brother, you know, like -- and he's like, do you really believe that [ bleep ]? and i was just like, not really. you know. but i didn't -- you know, i didn't know. >> reporter: brian's not sure if he should believe lance. are you believing brian? >> brian tells us some things that only the person that was there would know. >> reporter: but couldn't that make him a suspect? >> yes. >> it could. >> reporter: were you looking at him as a possible suspect? >> at that point he was, yes. >> yes. >> reporter: what were the details he knew about? >> he knew about the electronics in the sink. that's not anything that we ever released. that's not something we would ever tell anyone.

he also knew about the pool cue, and he knew that it was a very expensive pool cue, that it was over $1,000, which that was accurate. >> reporter: and he gave detectives a chilling detail. kim's last words. >> what does he say? does he say that she was dead or does he say anything about that? >> he said the lady was saying, stop. you're killing me. >> reporter: investigators were now determined to find lance. brian knew exactly where he was. >> our friends from the marshal's office went and paid that apartment a visit and lance was found hiding in the apartment. >> reporter: the long-missing lance kirkpatrick, once thought to be at sea, had now washed up in a police interview room. >> lance, have a seat over there, okay? >> the beginning of the interview was -- i mean, it was just a conversation. he was fairly forthcoming with his answers. well, i'd like to talk to you, okay, about some stuff, all right? >> reporter: the detective asked lance about the dorseys. he was careful not to mention kim's murder. >> you and derrick get along

pretty well? >> oh, we get along great. >> how about you and kim? >> we get along fine. >> have you ever had any problems with her. >> uh-uh. >> no, nothing like that? all right. >> no, i pretty much get along with everybody. >> reporter: lance said he'd been to see his pal derrick at his fire station. >> went out to the station 45 and got a hundred bucks from him to go down south. >> reporter: he said he was only gone for a day or so. he later tried to pay derrick another visit at his home. >> i went over there a week ago, maybe a week and a half ago looking for him. >> you remember what day it was that you went over there and did that? >> yeah, it was georgia/florida. >> georgia/florida. >> it was georgia/florida. right before the game. >> reporter: the very day kim died. lance was now putting himself at the crime scene. he told the detective he knocked on the dorsey door, but no one answered. >> did you go inside? let yourself in? >> no, no, no, no, no, the key wasn't there. >> where's the key supposed to be? >> it's supposed to be up under the dog right there.

>> where's the dog where? >> there's a little dog about like a fake dog by the door. >> reporter: spare key? little dog? lance had just admitted he knew how to let himself into the dorsey home. suddenly, the upended statue the detective noticed the morning they found kim's body made sense. >> what if i told you i didn't believe all your story? >> what part of the story don't you believe? >> reporter: larry kuczkowski was convinced lance had, in fact, found that key and sneaked into kim's house. the detective was certainly not about to let this sleeping dog lie. coming up -- >> how could someone do that to somebody to begin with, but then how could someone do that? betrayed by a friend. >> you the only thing i could do was howl.

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that was my business gi, this one's casual. (vo) get set up right with a live bookkeeper with intuit quickbooks. lance kirkpatrick told detectives he had driven over to the dorseys' home that saturday morning but had not gone inside.

detective kuczkowski wasn't buying it. >> i know you went inside the house last saturday, or two saturdays on florida/georgia weekend. >> the house. >> i haven't even given you the tip of the iceberg yet bro. all right. you play cards? if i show you my hand, do you think i'm going to win? >> if you've got a good enough hand. >> reporter: the detective thought he did. >> putting you at the scene i ain't going to break a sweat. i can do that. the scene is going to tell a story. >> reporter: that's when lance put down his cards. >> i'm not saying anything else. >> reporter: even so, the detectives felt they had enough. >> okay. man, time to go to jail. >> reporter: lance kirkpatrick was under arrest for kim's murder. but had he acted alone? investigators cleared brian of any involvement. though they still weren't sure about derrick. they examined his electronic and financial records and eventually came up with nothing that tied him to his wife's murder. >> we were looking to see if derrick had a life insurance policy on kim that he was trying

to connect or gain. you know, some type of financial benefit from her death. >> reporter: did he? >> to my knowledge, he didn't. it actually put him in a worse position to have kim out of the picture. >> reporter: derrick dorsey was no longer a suspect in his wife's murder. the jacksonville sheriff's office called to give him the news about lance. >> the chief of detectives said, mr. dorsey. we made an arrest last night. and i said, who was it? and they told me, lance kirkpatrick. and i said, what did you arrest him for? >> reporter: it didn't dawn on him that lance had, in fact, been arrested for kim's murder. >> he had an outstanding warrant for some traffic violations and so forth. i figured finally they're questioning him. they're going to clear him. and okay, so this is no big a deal. >> reporter: but it wasn't to be. >> no. he told me they had arrested him for the murder of my wife. the only thing i could do was howl like some damn wounded animal in a trap. it was the betrayal. >> reporter: this is the man

that you said you believed would take a bullet. >> i defended him. >> reporter: he would take a bullet for your wife, you said. >> how could somebody do that to begin with? but then, how could someone do that to someone who didn't have a mean bone in her body? how could someone do that to someone who had went out of their way to try to help him? >> reporter: lance kirkpatrick pleaded not guilty to the charges of burglary, sexual battery and murder. it would take more than two years for lance kirkpatrick to stand trial. the prosecutor knew the challenges that lay ahead. was there a weak area of your case? >> yeah. there's no witnesses. not one single person could say, yes, that's what happened to kim dorsey. >> reporter: still, she believed the evidence would show lance kirkpatrick's guilt. the state opened its case, explaining how lance had been determined to get inside the dorsey home any way he could that saturday, october 27, 2012. >> we know how his day started.

>> reporter: the prosecutor showed the video of lance pulling into the dorseys' community in that suv. >> i went over there a week ago, maybe a week and a half ago looking for him. >> reporter: she replayed lance's police interview, where he put himself on the couple's doorstep that morning. >> did you go inside? let yourself in? >> no, no, no, no, no, the key wasn't even there. >> reporter: she said the evidence would show that lance had lied to police then and was still lying about what really happened that day. lance had broken into the dorsey home, intending to rob them. >> it was our theory that kim was asleep and was awakened by, you know, noise, and that she wasn't expecting anyone and that she wasn't inviting anyone in. >> reporter: so when she awoke that saturday morning to find lance kirkpatrick standing in her home, kim likely went ballistic. the prosecutor called a reluctant brian kieffer to the stand.

>> to get up on the stand and to tell the truth, everybody's sitting there going, you snitch. you this. you that. you that. you know, but they don't know the whole story. >> reporter: he explained how lance had confessed everything to him. how lance admitted entering the house and confronting kim, violently, when she picked up her phone to call for help. >> and he said that he grabbed a a pool stick and hit her a bunch of times and smashed the pool stick. >> reporter: leaving her unconscious on the bedroom floor. he said lance described stepping out of the room. but then, kim woke up. >> and she got a gun and started shooting at him. and he said, and i knew it was a revolver. he didn't say he was in fear of his life or nothing like that. but he was -- you could tell he was angry. and then i just said that she

said, stop, you're killing me. and he said, and that's when i just stabbed that bitch in the neck. >> reporter: and if you didn't believe brian kiefer, said the state, believe the science. an analyst testified that lance's dna had been found on kim's body on the pool cue used to beat her and on the trash he left behind. did you find any dna on those cigarette butts? >> yes. >> reporter: and it belonged to >> lance kirkpatrick. >> more evidence against him that he was there? >> yes. >> reporter: derrick dorsey also took the stand. he said lance and kim had once been friends but in the months before her death, she had grown tired of their houseguest. kim had a house rule? >> no smoking in the house. >> reporter: was lance able to follow that rule? >> not 100%, no. >> reporter: that must have driven kim nuts. >> it would aggravate the daylights out of her. >> reporter: did it get to the point where he had to leave over it? >> yes. >> reporter: so it was really because of the smoking.

after they kicked lance out, kim wanted nothing more to do with him. in closing, the prosecutor said the defendant broke into the house because he knew that kim would never willingly let him in. when she confronted him, he killed her. as he listened, kim's husband realized how badly he had misjudged his former friend. >> you know the old saying, the devil's in the details? during the whole trial, during the investigation, i wanted to know every detail i possibly could. i wanted to know when, where, why, how and in what chronological order. i'm here to tell you that's not something you want. i'm here to tell you that's not something you want to know. >> reporter: now those details were out, made public in a court of law, and lance kirkpatrick was about to use them, awful as they were, to defend himself. coming up -- >> i didn't know she was dead until after i checked.

>> reporter: lance talksed to the jury and to us. >> i have never so much as raised my hand to a woman. >> did you rape kim dorsey? >> no, i did not. >> did you murder kim dorsey? >> no, i did not. no, i did not. >> when dateline continues. d n. >> when dateline continues.

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by the time his case went to trial, lance kirkpatrick had changed his story. he now admitted he was indeed responsible for kim dorsey's death. but he didn't mean to kill her. >> the whole thing was just a terrible tragedy. i mean, you know, i'm sure he wishes he could just rewind that whole part of his life. >> reporter: attorney teresa sopp said lance kirkpatrick's defense was that he tried to protect himself from a raging, violent kim that morning, and he went too far. >> he was being fired at, he was shot at five times by a pink handled revolver held in the hand of a woman who was irate.

who was taking medication which says on the label that it can cause suicidal or homicidal actions. it was a very intense social setting that resulted in just a very tragic end. >> reporter: she said the state could not prove otherwise. >> when you just put the physical evidence out there, and lance is the only one to explain what happened, that's a reasonable hypothesis of innocence. >> reporter: lance kirkpatrick took the stand. >> i've never so much as raised my hand to a woman. >> reporter: lance told the court then and maintains now there was no bad blood between him and kim, that she never kicked him out, as derrick claimed. he simply chose to live elsewhere. he sat down with "dateline" to explain. >> we were still friends at this point. just because i wasn't living with them i decided not to go stay there doesn't mean we stopped being friends. >> reporter: he told an entirely different story about that morning.

he said he went to the dorseys because of the big football game that saturday. >> i went over there to get my georgia jersey which i left over there before, which i thought i'd left over there. >> reporter: kim answered the door and let him in, he said. for awhile he played pool upstairs then came down to talk to her. he felt sorry for her. >> she didn't have friends. she didn't go out. >> reporter: she was suffering from some depression? >> yes. she was. she was self-conscious about her weight. >> reporter: you saw that? >> oh, yeah. >> reporter: he started watching a porn movie on that big entertainment system. he said kim wasn't interested in the show but she was interested in him. before long, they were having sex in the bedroom. afterwards, he recalled kim's mood changing. >> she was depressed, you know? she was insecure. that, you know, i antagonized her a bit after -- you know, we argued. >> reporter: as they argued, he said he stepped away to the kitchen. he insisted it was kim who first became violent. >> she was standing in the

bathroom door area in her bedroom. and you can see at the kitchen right there. well, the next thing you know, pow, pow, two shots. i hit the floor. i don't know where she's at. when she took it to that, you know, extreme, what was i supposed to do? >> reporter: leave. >> listen, where i was at in the kitchen, there's only two ways out. there's a back door and a front door. i go either way, i have to stop and unlock the door. i unlock the door, she's got a clear shot at me. >> reporter: based on the trajectory of the bullets, she was on the floor next to the nightstand beside the bed shooting up at you. >> yes. >> reporter: so again why don't you just run out of the house? the gun was unloaded. why didn't you run out? >> i don't know where she -- i didn't know where she was at. >> reporter: he said his gut reaction was to pick up the pool cue and charge toward her. >> i don't know how many times i swung. i don't know how hard i was swinging. my adrenaline was pumping to hard i probably could have bench

pressed a car. my aim was not to hurt kim. it was a reaction. >> reporter: even when she was down and out, he said, he still felt the need to act. why did you zip tie her after she was unconscious? >> my first thought was to restrain her till the police got there. and then once i started putting them on, i was like, oh, this is stupid. then i went to the kitchen to get scissors. couldn't find scissors. got the knife, come back in to cut them off. there was no way to get them off without cutting her. so i did away with that whole idea. >> reporter: he said he dropped the knife, stepped away and came back to the bedroom. kim had somehow freed herself. she was now standing, holding the knife. >> in that situation, it's -- you know, it's hard to say what you would do or what the right thing is to do or -- you're not thinking, you're just reacting. >> reporter: this went very wrong. >> yes, i agree. >> reporter: again he said, they fought. before he knew it, the knife was on the floor and so was kim.

dead. >> i remember getting up, i remember looking at the knife and seeing the blood and knowing that i had to have stabbed her or something, and i went to check to see where she was stabbed. >> reporter: at first, he said he waited for police, but when they didn't show, he left. when the police brought you in, why didn't you tell them the story that you told in trial? >> i was scared to death. i was scared to death. i didn't say it out loud even to myself for six months after this happened. >> reporter: did you rape kim dorsey? >> no, i did not. >> reporter: did you murder kim dorsey? >> no, i did not. no, i did not. when i took her life, it was totally unintentional. >> reporter: not true, countered the state on cross. it said lance kirkpatrick intentionally killed kim when she dared to confront him. >> you were pounding on that woman, weren't you? >> i wasn't aware of how hard or how light i was punching. i was just swinging. >> you did kill kim dorsey, right? >> yes, i did.

>> when you stabbed kim dorsey in the neck, she would never walk this earth again, right? >> i didn't know she was dead until after i checked. >> reporter: there are people, law enforcement, prosecutor, people have heard the story who think that what you say happened that day are just totally far-fetched. >> they're far-fetched. they took this bloody horrible scene and just thought of the worst possible thing that could have happened and went with it. >> reporter: some people think that you turned into an animal when you went into that room. >> and if you show blood splatter and everything else and just throw it out everywhere, yes, that can be said. but that wasn't what happened. that wasn't what happened at all. >> reporter: he insisted he had killed kim to protect himself. there was no premeditated murder, he said. no burglary. and certainly no rape. the defense noted the medical examiner could only determine

kim and lance had sex, not that kim had been raped. >> the only testimony was that the sex was consensual. everything else is physical evidence and speculation. so unless there's somebody else testifying, yes, i was physically assaulted, no, i did not consent, you don't have that and all you have is the physical evidence, it's difficult to speculate that it was sexual battery. >> reporter: the defense closed by saying the state had failed to prove its case. it argued lance kirkpatrick should only be convicted of the lesser charge of manslaughter. those who worked to build the murder case against him shook their heads in disbelief. >> if you're defending yourself, do you need to tie her up with zip ties? do you need to rape her? beat her with a pool stick? do the things you did to her in defense of your life?

complete made up story. >> reporter: as the case went to the jury, derrick dorsey sat in the courtroom and seethed. >> he killed her, raped her, sodomized her. this wasn't just some loss of control. to do something like this, you've got a hole in you. there's something deep down evil inside of you to do something like this. >> reporter: the jurors agreed. they found lance kirkpatrick guilty of murder in the first degree. now they faced another agonizing decision, whether to sentence him to death. >> i never thought i was ever in any danger of the death penalty. because i didn't feel i had done something to deserve that. >> reporter: in the end, the jury sentenced him to life. derrick dorsey thinks his old friend got off way too easy. >> if you could say anything to lance kirkpatrick, what would you say? >> at what point did you make the decision did kim's life had less value than you getting into trouble? at what point did you decide to

kill her? >> derrick said it's taken time to move on from his life. he's retired from the fire department. >> we have derrick dorsey's last day. >> reporter: he's also remarried. that's not to say he's forgotten him, their life together or the mistakes made. >> it tloind fidelity on my part if the was probably the most disrespectful, rude thing i could do to her. i'm going to live with that for the rest of my life. she didn't deserve it. >> and didn't deserve either the man that derrick brought into her world. what memories does she leave behind for you? >> every time i look at the dogs i think of her. they were her children. she was quiet, a little bit of an introvert. and just a caring individual. i see many times someone needs a hand, someone just needs someone to talk to, he she was there. >>? in some ways, she still is.

but he knows for every welcome memory, there's a brutal one for her and what happened, churning like a storm, surprising and devastating when it hits. >> and i'm natalie morales. >> and this is "dateline". we're agonizing for the last two years. initially it was panic and then it turned into torment. >> i was concerned that she was hurt somewhere. i felt so helpless. ♪ kelli bordeaux was always there for others. >> she liked to help people that needed help. >> there for her friends, there for her country. >> this was a good fit for her, the army? >> she wanted to be an officer. >> her personal life was a little more complicated. she was estranged from her