i get my strength from my mother. she was my very best friend. i called my mom, and she didn't answer. i pretty much knew in my heart that something was wrong. >> a mother vanished. >> i cried myself to sleep. it was just awful realizing that your worst nightmare had come true. >> a family anguished. >> she's gone. do you have any idea how hard that was? >> now the questions begin. in a southern, gothic mystery. >> the case is puzzling. >> we didn't really know what had happened. >> who would ever have imagined you'd have a murder in your family? >> soon, there'd be secrets. >> we were dealing with a person

that was leading a double life. >> and one of them would prove deadly. >> have you ever said i know that you did this? >> it hurts too much for me to say it out loud. >> keith morrison, with "secrets in a small town." good evening, and welcome to "dateline." i'm lester holt. her life ended in mystery on a dead end road, a mother of three who'd gone missing. for police, the investigation seemed to hit a dead end too. but they had promised this family they would never quit. then, a small town story led to a very big break, and to a suspect that surprised just about everyone. here's keith morrison. >> suppose for a minute you were sitting in your car, smack-dab in the middle of tuscaloosa, alabama, and you kept an eye down highway 69 and kept a sharp

eye after about an hour or so. you rolled into a town called moundville. been around for a long time, has one stoplight, one main street, one general store. been around for a long time, has moundville. but it's a sad truth as the sheriff says, even here, where everybody used to know everybody, it's not that way anymore. >> so many different people are moving in from around the world and -- >> trying to escape the crowds. >> escape the crowd or running from something. >> oh, yes, where you have gone, andy griffith, mayberry has apparently up and left us. sheriff kent ellis fights real crime nowadays. >> the crime you see here is the same crime you would see in any city, just a smaller version. >> neighbors tend to know more of each other's business than they might in tuscaloosa, for example. which can be a bit of a nuisance, as you're about to see, if you need to keep a secret, especially, for example, if your secret is about murder.

to begin with, this thoughtful young woman was just a girl of 17 back in '07 when it things started coming apart in the way things do when parents don't talk about it. kelsey mayfield saw that troubled look in her mom's eyes, her mom, teresa. >> i could tell she was just very stressed. >> was it ever clear to you what she was stressed about? >> money would be the main thing. she just wanted to make sure she had enough money to take care of her family. >> a lot of that going around of course moundville not excepted. kelsey's dad had to work two job, neither of which paid very well, just to keep his head above water. >> very hardworking man. it took two jobs to take care of our family. >> but money trouble aside, teresa seemed to have a happy life as anybody could see, including teresa's mother, reba.

>> all teresa wanted was to have a husband that cared for her, somebody she cared for that could have a family. >> and it was sweet and kind of corny, and even after kelsey's two little brothers arrived, she could see the signs of her parents' affection for each other. >> every night before he got ready to go to work he would give her a kiss on the cheek and say goodnight, i love you. >> to the town, teresa was the softball mom in the back of her car bats and balls, she shuttling kids back and forth. >> i remember there was a time when i had a softball game and my brothers had a baseball game all at the same time. and she stayed 30 minutes at colby's game, 30 minutes at taylor's game and 30 minutes at my game. >> just watching on the clock? >> she was just an amazing mother. there was nothing that she would not do for myself or my two brothers. >> then there was that sweltering morning, june 2007. teresa drove off to run errands and didn't come back.

kelsey was babysitting the boys. then 8 and 11. hours ticked by. she called her mom -- where are you. >> and she didn't answer. and i called her back around lunch and she didn't answer. i called her pretty much all day long. >> her dad was at work. her mom was who knew where. just wasn't like her to do this. was she the sort of person to take her cell phone with her everywhere? >> yes, it was always attached to her hip. >> you could always easily get ahold of her. >> yes. >> and you couldn't. >> no. >> by nightfall, still no word. kelsey was in a panic. she called her dad who had by now gone from his day job to a night shift at a local factory. >> i'm sure you told your dad were you worried. >> we kept in touch during the day to see if one of us had talked to her. >> did he seem to be worried? >> he did and we could never get in touch with her. >> at midnight, it was clear something was terribly wrong. scott left work to file a missing person's report with

the moundville police, and then they all waited. what was it like for you that night? >> it was awful. i was very scared when she didn't come home. and i pretty much knew in my heart that something was wrong. >> the next morning, said kelsey, she woke up in a house that no longer felt like home. she called her grandmother reba at her home in prattville, the town two hours away. >> she said, is mama down there at your house? i said no, she's not here. and she said, mama didn't come home last night. >> so what was going on in here? >> oh, i'm just turning upside down, you know. i'm just tying in a knot. >> reba called teresa's younger sister ashley at her office, the local circuit court. >> mama called me and said teresa's missing. i said let me make some phone calls. >> right away, ashley called the

sheriff of her town and he called sheriff ellis. >> to see if they knew anything. and his response to me was it's bad. it's bad. >> it certainly was. they had found teresa's truck on a dirt road less than a mile from home. she was slumped behind the wheel, and she was dead. and this much was perfectly clear. it wasn't an accident. coming up, the investigation begins. >> we had to ask ourselves, who would get her to this location, and why was she murdered? >> when "secrets iin our house, we do just about everything online. and our old internet just wasn't cutting it. so i switched us from u-verse to xfinity.

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it was a lover's lane, a quiet, dusty, dead-end road miles from main street moundville, a spot so uncommonly traversed with engine running, trail lights blazing into the night could go unnoticed. this is where they found teresa's truck, body inside, gunshot wound to the head. teresa's younger sister broke the terrible news to their mother. >> when i went to the house, mama was sitting in her recliner, i knelt down on my

knees, and i grabbed her, and i said, "mama, she's gone. she's gone." do you have any idea how hard that was? >> teresa's daughter kelsey had spent a sleepless night, waiting in vain for her mother to come home. >> how did you find out? >> my dad came and told my brothers and i. it was just awful realizing that your worst nightmare had come true. for a brief second, i thought she had committed suicide, just because i knew how stressed out she was. but then, i also knew how much she loved her family. >> everybody who knew teresa knew that, even sheriff kenneth ellis who drove out to the crime scene, if that's what it was. corporal mark boyd, alabama bureau of investigation met him there. this case was kind of personal for you, sheriff. >> yes, my daughter and ms. teresa and scott's daughter they played softball together.

>> so you see teresa out at the ballpark and things. >> every game. felt like part of my family was gone too. >> they had a look around the truck. no sign of a struggle. the dusting revealed no viable fingerprints. there were no footprints, not even a loose hair. puzzling. >> was there any thought once you saw the scene that this was a suicide? >> there was things missing that prevented the suicide theory. >> like what? >> if you're going to commit suicide with a gun, it's usually at the scene. >> it was clear teresa had been murdered, shot with a gun, which was now missing. and what was more, her cell phone, the one that was always attached to her hip, was nowhere to be found. >> did it look like it could have been a robbery?

>> well, the wallet wasn't taken. the purse was on the console, but the consents of the purse had been dumped out in her lap. >> a clumsy attempt at staging, you might say. >> yes. >> but there was one important clue the killer left behind. >> we noticed that the only window down was the driver's window. so we figured that she had to have known the person, because she had let down her window. we had to ask ourselves who could get her to this location and why was she murdered? >> someone in moundville had to know something. from there, the investigation went where? >> investigating her inner circle, trying to find a motive. >> and usually, so i'm told in cases like this, the husband has got to be a person of interest. >> yes. >> so, as the family gathered to mourn the loss of their beloved teresa, scott couldn't be with them. he was down at the sheriff's office answering questions.

he came willingly. >> yes. >> did he ask for an attorney or anything? >> no, he did not. >> corporal boyd chatted with scott for three long hours, and during the whole time he was cooperative and helpful. >> you know, the standard questions that we would ask is, you know, is anyone having an affair? are you having an affair? no. was she having an affair? no. >> good marriage, happy marriage? christian marriage? >> right. i asked him did they argue. he said no. >> scott answered all of their questions about what teresa was supposed to be doing that morning. he told them he phoned teresa from a farm a wake-up call. then about two hours later she called him but the call faded out. he couldn't hear a thing. >> scott said it sounded like she was on the road. >> he thought nothing of it then but now, was it a distress call? but there was one thing that call certainly cleared up for investigators. scott could not have killed teresa.

he was something like 30 miles away, up near tuscaloosa, had a breakfast receipt to prove it. >> he stopped at hardee's and had a receipt to show he was there. >> so scott rejoined his family caught up in the terrible business of groefg. grieving. >> i kept wondering why was it happening to our family? >> it was awful. who would ever imagine you would have a murder in your family. >> investigators tried with the help of friends to fill in the gaps of teresa's last hours. they talked to scott and teresa's friend, dawn lavender. she had plans to go shopping with teresa the morning of the murder. i'm sure dawn was upset by what had happened. >> she did cry during the interview. she was at her house, waiting on teresa to come pick her up, because she was going to ride with her. she finally got the chance to talk to teresa around 7:00. >> and after that call -- nothing. dawn told the investigators she phoned teresa over and over, and each time, the phone went to a recording.

just to be sure of all this, they pulled teresa's cell phone records and began plotting out a timeline of her whereabouts, but the picture the records painted wasn't quite what they expected. that morning call to scott, the one he couldn't hear? teresa did not call from moundville. >> cell tower shows that it's pinging from up in tuscaloosa. >> wait a minute, how could it be pinging from tuscaloosa? that's miles and miles away. >> right. there's no way that she could have made the call and been back to the location where scheefshe was murdered at. >> so courtesy of the cell towers you were able to show that teresa could not have made that call. it had to be someone else using her phone, and what do you now, her phone is missing from the crime scene. >> correct. >> so the person who very likely killed three is amayfield must have used her cell phone to call her husband, scott. what could that mean? did the killer know scott? and did scott know something he

wasn't sharing? coming up. >> we were dealing with a person that was leading a double life. >> secrets and lies. >> this was betrayal. >> that's a very good word. don't wait for awesome... totino's pizza rolls... ...gets you there in just 60 seconds. go bold with flavors that kick. (humming) oh yeah. (humming)

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it's a funny thing about secrets. they can only stay hidden for so

long. especially in a little place like moundville. and it didn't take very long for sheriff ellis and corporal boyd to stumble onto a secret scott had been keeping. >> while we was out at the crime scene, scott had had a young lady to come pick up the boys. >> it was only later when the fog of grief had lifted that one of teresa's relatives wondered to police, who was that woman hanging around the day teresa died? ellis and boyd tracked her down, and what they discovered? well, that changed everything, or seemed to. the person they were talking to was scott's mistress. >> she was under the impression that scott was not married at that time. >> what did you make of that when you heard it? >> we knew that wasn't correct. >> a love triangle? jealous home wrecker kills wife, claims husband? no. not even close.

scott's girlfriend thought his marriage was over, his divorce finalized. what was her reaction to getting the real story? she must have been upset? >> more hurt, probably than upset, because i think she'd fallen in love with him. >> he'd been lying like a sidewalk. >> that's right. >> and you had no idea that woman was associated with him that way either, did you? >> i had met her once or twice, but i just thought they were friends. i didn't think it was anything else. >> this was betrayal in all capital letters. >> that's a very good word. >> you are betrayed. >> lied to. yeah. taken advantage of in a way. >> kelsey may have been surprised, but teresa's mom and sister, they knew better, because this wasn't scott's first dance with infidelity, oh, no. there had been others. in fact, scott and teresa divorced during one of his affairs.

that was just after kelsey was born. and then three years later, teresa took him back. remarried him. >> she wanted to have her family back together. that was her whole thing -- family. >> what was it like for you when scott came into your house? what would happen in here as he walked in the door? >> i tried to be sociable, neutral with scott, but always had that thought in the back of my mind, he hurt my sister, and i would not forget it. >> for a while, things were as teresa had always hoped. but wishes don't always come true. soon scott was back to his old ways with that girl cops were talking to in tuscaloosa. and you know how gossip can be. scott went from sympathetic figure, grieved widower to cad, and maybe worse. you must have been aware of the fact that there were people suspicious of him.

>> it bothered me hearing the bad things that people had to say about him. and i knew that my dad was never capable of doing something like that. you know, i was going to have his back regardless. >> but, to investigators, scott's affair and the fact that he'd lied about it to police was certainly suspicious ellis and boyd asked the girlfriend to help them out by recording her conversations with scott. maybe he'd let something slip. [ phone ringing ] >> hey. >> hey. >> are you okay? >> yes, i'm okay. they just left. look, all i want to know, did you do it? >> of course not. they told me from the get-go, i would be number one prime suspect. because i'm the husband. >> i know. do you still love me? >> yes, i do. >> if you did have anything to do with her dying, was it because you loved me? >> i didn't have nothing to do with it. no. no. no. i had nothing. my hands are clean as they can be.

>> so, infidelity? yes. murder? hmm, didn't sound like it. >> we could prove that he was an adulterer. but we was trying to prove the murder. >> guess there's no crime in being a lying sack of you know what. >> it's not against the law to have a mistress. >> so now the corporal and the sheriff reverted to standard procedure. they followed up every tip tracked down every tenuous lead, knocked down numbers. knocked down rumors. somebody called scott from teresa's cell phone that morning whether he heard it or not. the investigation dragged on. weeks and months went by and there was nothing. >> nothing. we had no idea how that anger would get the best of you, not knowing who done this. and you want the person that done this to be punished for it. >> kelsey took on the most

difficult job of her life. at 17, she stepped into her mother's shoes, defended her father, tried to maintain something of a normal life for her little brothers. >> me trying to fill my mother's shoes, those are some big shoes to fill. i just felt like it was my responsibility to help my dad take care of my family. >> so you were able to continue to have a relationship of trust with your father? >> right. >> he was there for you guys? >> yes. he tried to be strong for us. so, you know, we wouldn't have a break down. >> by the first anniversary of teresa's death, there was still no arrest. and the story was old news. so teresa's mother plaster the this poster on doors and windows and telephone poles all around moundville, hoping it would help dislodge some clue. then the weirdest thing happened. >> we found out just about as quick as we were putting posters up they were being taken down.

>> taken down by someone who didn't want teresa's killer found, she presumed. and a dark thought crystallized in reba's mind. was it scott? >> you know, he never acted like a grieving husband. if he had, i wouldn't have had these thoughts. >> so your thoughts actually increased over the course of the tomb that you were with him? >> yes. >> but you know what they say about assumptions. it wasn't scott. >> me and my brothers took them down. at first, i was okay with it. but once they put the posters up and everywhere i went i saw my mother's face, it just drove me crazy. it broke my heart seeing her face splattered all over these pictures. >> and so expectations faded again. couple more months went by, and then, a girl who knew kelsey heard a strange little story. overheard it, actually. a guy saying he saw someone with a gun on a dirt road, around the time teresa was killed.

did she associate it with this crime? >> well, she knew that ms. teresa was killed down that way, so she just reported it. >> was this the break they were looking for? well, we can tell you this. the tip led to real flesh and blood. in fact, to a quite literal snake in the grass. coming up, a curious incident from teresa's past. could it shed light on the crime? >> i looked at her and said you need to stay away from that woman. >> when "secrets in a small town" continues.

under a setting sun on a sweltering summer night, two years after her death, teresa mayfield's friends and family gathered to remember. >> i talk to her almost every day, and i miss those talks. >> they took turns talking about the loving daughter, the softball mom, the sweet woman gunned down on that lonely country road. a murder that was still a mystery. >> my family will not stop searching or doing whatever it takes to find out who took teresa's life.

>> when scott got up to speak, you can bet people were paying special, close attention. >> yes, she was a loving wife, loving mother and a loving friend to the community. yes, she would do anything for anybody at any time. >> having discovered he was not exactly husband of the year, some people still nursed a lingering suspicion, and yet, here he was devoted to the care of his children and full of praise for his dead wife. >> she did a wonderful job raising these kids. she was the one who got them to practice on time, got them to ball games on time. >> when sheriff ellis walked up to the podium, he looked at teresa's mother reba and vowed he'd get justice yet. >> ms. reba, i won't quit until we find out what happened to ms. teresa. >> and in fact, even as he spoke, the sheriff along with the corporal were chasing down their first honest to god lead in what, over a year?

didn't seem like much, not at first, just an overheard story from a guy in a bar, something about how he and a friend ran into someone with a gun, not so terribly uncommon, mind you, terribly uncommon around here mind you, except that it happened around the same time and not very far away from where the murder occurred. so ellis and boyd tracked the kid down and he repeated the story for them. >> they were on a dirt road. and they came upon a snake, a rattlesnake. and they was trying to kill it, find something to kill it with. >> trouble was, they were plumb out of rattlesnake killing tools, and that's when an suv just happened to pull up on the dirt road behind them. the driver was a woman in her 40s or thereabouts who, said the young man, offered them a surefire way to dispatch that rattlesnake. lady in the car had a gun? >> right. >> it was a handgun, inside a ziploc plastic bag. >> i think she handed him the plastic bag for him to take it out.

>> that was a little weird. why would it be in the bag. >> right. >> a peculiar story for sure. certain details were fuzzy, the kid couldn't remember the exact day, for example but he did recall with absolute clarity who the driver was, because he knew her. knew her name. and here was the most curious thing of all. it was a name you've heard before. dawn lavender. small town moundville suddenly got even smaller. dawn lavender, you'll recall was teresa's friend, the one who said she waited in vain for teresa to pick her up on the morning of the murder. great buddies, according to dawn, but maybe not so much, said kelsey. >> if our moms saw each other at games or whatever, they would speak. but they weren't best friends or anything. >> they did go out together a couple times. >> i think my mother did it because she was bored and wanted to get out of the house. >> but when they did get together, at least on one occasion said kelsey, it was

certainly memorable, and not in a good way. they went out to a local casino one night she said, and her mother came home stumbling. >> i thought she was drunk. and i knew that couldn't be right because she didn't drink. she didn't know where she was at. you couldn't understand what she was saying. she came in, my dad and i got her in the bed. >> how long did she sleep? >> she slept for two days, two straight days. >> what did you think about that? >> thought it was very strange. but she didn't really remember what happened. she just knew that she had taken some pills, i believe. >> how did she get them? >> i believe dawn gave them to her. >> remember how teresa was stressed out those last weeks of her life? night of the casino trip teresa told kelsey, dawn gave her xanax, the anti-anxiety medication just to calm her down, dawn told her. and it certainly did that. out like a light, calm, for two whole days.

>> i looked at her, said teresa, you need to stay away from that woman. she is no friend of yours. >> and how did teresa respond to that. >> she said i learned my lesson. >> or maybe she didn't. because the morning of the murder, teresa had arranged to run errands with dawn. or at least that's what dawn said. and then it all clicked together. dawn on the dirt road a gun in a plastic bag, teresa's window down as if she knew her killer. sheriff ellis and corporal boyd picked apart dawn's interview with a suspicious eye. they pulled her phone records, and there at that was, plain as day, dawn's lies caught by cell phone technology. >> it painted a clearer picture, that dawn was in the location of teresa the morning that she was murdered. >> but why in heaven's name would a woman who claimed to be teresa's friend want to kill her? good question, which perhaps they'd get answered once they

accused dawn lavender of murder, which they did. she, however, had but one thing to say to police. >> she just kept saying that it was wrong, that we made a mistake. coming up. >> as far as physical evidence, we really didn't have any. >> but they did have a plan. an undercover sting to get the evidence they'd need. when "dateline" continues. on june 11, 2010, almost lee

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on june 11, 2010, almost three years to the day teresa was killed, the sheriff and boyd drove to the wire factory where dawn worked. she was half way through her day shift, and they told her she was under arrest for the murder of her friend, teresa mayfield. >> she first wanted to know why we were arresting her. then when she got to the jail she said this was wrong, we made a mistake. >> the corporal and sheriff were only too happy to explain how one clue had led to another and eventually to an inescapable conclusion. but the prosecutor had questions. pointed ones. >> you could tell it was going

to be difficult. >> where was the smoking gun? where was the murder weapon? where was even one single fingerprint tying dawn to the crime? >> as far as physical evidence, we really didn't have any. it was truly circumstantial, because we didn't really now anything about what had happened. >> as far as evans could see, the case was a "maybe" at best. she had no reason to kill teresa, so to bring a case against her would be pretty tough, i would think. >> the case with dawn is puzzling. when you're working with a circumstantial case, every piece of evidence is definitely important. >> not that they thought for a second that they were wrong. they believed dawn was the killer. they told the prosecutor not only was dawn the murderer of teresa but that they were convinced she tried and failed to kill her with a xanax overdose at the casino. >> the sheriff's department believed that was an attempt on her life, but we had nothing to

really support that. >> but if tim evans was to get a conviction, he needed more, more evidence. some concrete proof that dawn had pulled that trigger. now now you can bit dawn wasn't you can bet dawn wasn't about to tell them anything, but that doesn't mean she wasn't talking. >> we had another young lady that was getting out of jail, and she came to us and said that dawn had been talking about the murder. >> but that could have been just gossip, mind you. from a jailhouse snitch who couldn't back it up. but dawn did have a cellmate. >> she was kind of in a jam herself. and she wanted us to try to help her, you know, we can put a word in to the d.a. or put a word in to the judge. >> that was enough to get some cooperation from her? >> right. >> the objective was simple, get dawn talking. wrangle at least something from her that sounded like a digital.

they equipped her with a digital recorder. as an unsuspected dawn sat in her cell reviewing her case file, her cellmate walked in and waited for some incriminating tidbit. what she got instead was the whole sickening story. here's what dawn told her cellmate about the morning teresa was killed. around 7:00, dawn called teresa with a lie to set the plan in motion. >> i [ bleep ] wasn't taking any more vacation days. >> she claimed her car had broken down nearby. could teresa come pick her up. but of course she said yes, finished drying her hair, got into her car, made the short drive to that dirt road, and there standing alongside the road was dawn.

>> with calculated, cold precision, dawn lavender lured teresa to that dirt road, shot her in the back of the head and steered her car into the brush, hoping it would stay hidden for a while. >> cold blooded killer. >> really, if you think about it, that's exactly right. >> yeah. terrible looking at it that way, though. [ bleep ] >> it was all there. a prosecutor's dream confession. she even referred to herself as a cold-blooded killer. but there was one question anyone with a beating heart wanted to ask. why?

there just had to be an answer. of that, they were sure, but would they ever get it out of her? >> why in the hell did you do it? coming up. >> at some point, she was calling herself a hit man. >> a hit man, but for whom? another painful revelation was in store for teresa's family. >> it hurts too much for me to say it out loud. >> when "sec

>> dawn lavender sounded for all the world like she was boasting as she confessed to her cellmate that she murdered teresa mayfield in cold blood. in fact, in recorded conversations with her cellmate, dawn not only admitted to shooting teresa, but said that she had tried once before. that strange night at the casino when teresa came home stumbling, that was her first attempt at murder.

>> why would she want to kill her friend? because, listen to this, the answer to the whole puzzle comes down to one little word. dawn uses it when telling her cellmate what she did. >> we tried to overdose her. >> we? dawn was not acting alone. she had a coconspirator. >> i don't know if she was trying to be a show off, because she was calling herself a hit man. >> how much were they supposed to give you? >> 20, 15 or 20. >> dawn was a hired gun for -- you guessed it. scott mayfield. >> she was a loving wife, loving mother. >> the man who heaped praise on his dead wife, his grieving children by his side was according to dawn the architect

who designed her death, her revelation finally made sense of a trail of disturbing stories the investigators had been running down for months. >> we had one guy that worked around there in moundville scott offered him $500 to kill his wife. and a little while later we got a call from another guy's son saying his daddy wanted to talk to me. scott had approached him about killing his wife. >> his response to scott was get a divorce. that's what divorces are for. >> and then a third man told him a story. >> he had told us that scott mayfield had hired him, had given him $15,000 to kill his wife. he did not have any intentions on killing her. he just wanted the man's money. >> what's the old saying? two is a coincidence, three is a pattern. which is why even before dawn told her grisly tale on tape, in fact, on the same day dawn was arrested, a warrant was also issued for scott.

kelsey was outside mowing the lawn when she saw a cop car whiz by, then another and another. she called her dad on his cell phone. >> i asked him where he was at. and he said the cops have me pulled over. >> your dad, for heaven's sake was being arrested. had to be a shock. >> i was very confused. so i asked the arresting officer, why are you arresting my dad? and he said it was solicitation and conspiracy. >> to commit murder. >> to commit murder, yes. >> in other words, he said your father was responsible for the death of your mother. >> um-hum. >> still, as he sat behind bars awaiting his day in court he assured his children that it was all a mistake. he was innocent. what did you expect would happen? >> i thought he would be found not guilty and be able to come home. >> but at that point, the case against scott was almost entirely circumstantial. that was until dawn got to talking to that cellmate, the one with the little recording device.

and sure enough, as the whole story spilled out, there was scott's name on tape, proof at last. >> once the job was done, the car half hidden by the brush, dawn said, she drove to tuscaloosa and dialed a familiar number from teresa's cell phone to let her boss know his wife was dead. >> did you call scott and let him know that it was done? >> the only thing left was to collect the $20,000 scott had promised her and go. except -- >> scott never gave you no money?

>> but of course dawn didn't keep her mouth shut about what she and scott had done. >> from what i could tell, he was just a coward. he wanted a divorce, but he didn't want to live with the responsibilities that accompany a divorce. >> in other words, he didn't want to pay her alimony. >> or child support. evil was the only thing you can use to describe that man. evil. >> and on may 19, 2011, almost four years after teresa mayfield was gunned down on that lonely dirt road, her mother, sister and daughter sat in a courtroom and listened as dawn and scott, having pleaded guilty to both murder and attempted murder, were each sentenced to two consecutive life sentences. >> he looked straight at me, like he was looking at a tree or something. there was no emotion. and neither was there anything from dawn.

it was like they were empty inside. >> but for kelsey, it was simply overwhelming. at the moment of sentencing, for the very first time, she saw her dad not as the loving father who took her shopping for her senior prom dress but as the man who orchestrated the death of her mother. >> have you ever brought up the issue with him? said i know that you did this? >> one day i will. i don't have it in me right now to confront him and tell him what i know. it hurts too much. for me to say it out loud, for my to tell my dad i know what he did and that i, i hate what he did. but he's still my father. and i'll always love him. >> her mother loved him too. loved him through infidelity and trouble, loved him always. even as she loved her children, her family. as she tried her best to make life good while he plotted to kill her.

>> a couple years earlier, you had a great, full, lovely family life, and now -- >> there's really not a word that you can use to describe what our family has been through in the last four years. it's been, it's been a very difficult four years. >> and you've got such a nice, sunny disposition. how do you do that? >> i get my strength from my mother. >> that's all for now. i'm lester holt. thanks for joining us. next cars disappearing from east bay dealerships. maybe what we'll show you will bring it to an end. new video. party that.bz

ast bay. water, waiter, everywhere. a driver's decision that soaked the streets tonight. thank you for joining us. >> first the hunt is on for several thieves who are repeatedly targeting bay area ca