the. this is "dateline." she was a college student, found on a lonely road in texas. >> we figured she had been sexual assaulted and dumped here. >> tough questions for her boyfriend. >> where was i the night before? what had had i last seen her. >> i thought he killed her. >> while police tried to prove it, another attack. >> he's yelling at me, shaking me, telling me not the say a

word. >> you were a prisoner in this apartment. >> yes. >> her body had been propped up against the bed. >> there's growing danger, because police are looking in the wrong place. >> i lived to tell, and nobody believed me. >> this monster is walking free while they're wasting their time on me. >> can the killer be caught before he kills again? >> it makes you realize how fragile your life is and that anybody can take it. welcome to "dateline." a killer was on the loose in a texas college town, leaving students and their parents terrified. but the shocking discovery of jamie hart's body, investigators were desperately trying to pin together clues. was the young woman connected to

her killer, or did the police have an active killer on their hands? here's andrea canning with the face of evil. >> looking back now, this woman almost didn't make it. >> i said, if you keep doing this, you're going to kill me. he said, do you think i actually care about that? >> is that when you're looking in the face of evil? >> little did she know in this college town, she wasn't the only one. >> he said he'd go to jail for murder before rape. >> what was going through your mind? >> i wish i told the people i love that i loved them. >> was their private horror connected to a public mystery? >> it just had people asking, what was going to happen next? >> more women connected way tragedy and by questions. would a killer had been stopped sooner? >> i was so angry that two

people had to die in order for someone to believe me. >> the story begins in a small texas town, but it's not just any town. this is college station, home to texas a and m. and home to jamie hart. >> i was immediately struck with her beauty. >> chuck cruz was her boyfriend at the time. he remembers when he first laid eyes on her. >> i could barely speak when i saw her. she was so pretty. it was like when the color came on in the wizard of oz. i had been living in a dark world. >> and she was a loyal friend. funny, outspoken. it was early one morning in may. jamie's roommates couldn't find her. they called chuck. >> i got a call asking me if i

knew where she was. i said she didn't come over here last night. i didn't talk to her and went to work. >> that same morning, he was summoned to the scene of a discovery. >> there was a young female. nude. extensive road rash on her entire body. she was obviously deceased. >> a jogger spotted the victim in a ditch nine feet from the side of the road. >> when i arrived there was probably half a dozen officers here and they taped off the area. at that point we started conducting a search of the area. we figured she had been sexual assaulted and dumped here. >> less than a mile away, deputies discovered what was presumed to be the woman's clothing strewn across the entrance to an oil field. another nine miles from there, an abandoned vehicle, its engine

still running. >> there was blood on the car. we sent a team to process a car. >> inside the car, a driver's license that belonged to jamie hart. when detectives showed up to chuck's workplace that afternoon, he says his heart sank. >> when they toll me that she had been found dead, it felt like i had been hit by a truck. >> wow. so your sense of dread was coming true. >> right. yep. realized. fully realized. >> did fear spread throughout the campus? >> oh, yes. i mean, it was front page news. >> kristin lancaster was a 19-year-old freshman. >> my brother worked with jamie at the time, and i'll never forget him coming home devastated. >> a killer in a college town is terrifying. >> pretty much so, yes. >> this is something that happens in chicago, houston. it's not something that happens

in college stationing aggieland. at the time people were hoping this was a drifter that kept going, because of the location of her body. >> sheriff's deputies canvassed the crime scene, searched her car and looked for witnesses. >> talked to several hundred people, but no one's seen anything. >> turns out, there were no finger prints in the car. but during her autopsy, the medical examiner did recover dna from jamie's body that likely came from her rapist and a killer. >> did you put the dna into a data base is this. >> we put it in codis. >> any hits? >> none. >> no witnesses, no fingerprints, no matches. the investigation wasn't off to a good start. >> that's when we started contacting them at her place of employment, friends, roommates. >> did she have any enemies? >> everybody seemed to love her. >> detective elliot began to

retrace jamie's steps on the night of the murder. jamie was taking time off her studies and working at a pizza parlor. her shift ended around mid nigh. >> we contacted everybody she delivered pizzas to and nothing out of the ordinary. >> after work she headed to a friend's house. >> he said they were watching movies and she left his house around 4:30 in the morning. >> what time did you think she was killed? >> we got the call at 7:30 a.m., so between 4:30 and 7:00. >> the male student was the last known person to see jamie alive. the detective paid him a visit. >> she was upset. >> the friend's grief seemed genuine, but something seemed peculiar. when they asked for a dna

sample -- >> he said no. >> he put the young man under surveillance, followed him to a local restaurant. >> and are you hidden somewhere in the restaurant? >> i'm kind of back in a corner. >> he watched the student have a few drinks and when he left the detectives snagged the mugs and sent them out for testing. >> the results would take weeks. >> dads and moms were telling their college age kids, be alert everywhere you go. be with people when you go out. don't be out alone. that's a frightening order to give anybody. >> frightening, but sound advice, because in this case, connecting the dots wouldn't be so easy. >> detectives have a second possible suspect in their sights. jamie's boyfriend is invited to sit down for a poly graph test. >> failed the test. >> bad sign for you, right? >> it's bad for him.

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21-year-old jamie hart had been sexually assaulted and left to die on the side of a busy roadway. >> i could barely function. all i could think about was loss, that she's gone from my life forever. >> jamie's boyfriend, chuck cruz, then 24, says right after the murder he took off to baytown texas, jamie's hometown.

>> about the only thing i remember her father asking me is, "when are you coming down?" so i got some stuff together and drove down as soon as i could. and i spent most of the next week with them, mourning with the family. and then acting as a pallbearer for her funeral. >> back in college station, detective kenny elliott was working the case. >> anytime you have a killer out on the run, it's frustrating. you want to catch the person responsible. >> one possible suspect, that male friend jamie visited the night of her murder. he'd refused to give police a dna sample for testing. that's kind of odd, if he had nothing to hide. >> a lot of people will not give up dna. too much tv. >> but the detective had snagged a sample from a beer mug and when the dna finally came back,

>> the dna not matching? you felt confident that you could rule him out, based on -- the dna not matching? >> yes. >> but even before the dna test cleared jamie's friend, the detective was already looking for other suspects. and his attention quickly landed on someone very close to the victim, her boyfriend. >> the questions that they asked focused on where was i the night before, what had i been doing. >> looking at you as a possible suspect? >> it didn't really occur to me that that was what they were doing. i just thought they were asking for information. >> chuck told the detective that before jamie was killed he hasn't seen her for two days. on the night of the murder, he said he was at home. >> i was playing computer games like a good nerd. >> did you have anyone there to corroborate your alibi? >> i think my roommates were there but they were both asleep.

i had nobody right there, sitting there with me. >> so the boyfriend's alibi wasn't solid, and as they spoke, the detective was looking carefully for signs he might be hiding something. >> he was cooperative. apprehensive. he said everything was fine in their relationship. >> the detective asked chuck for dna and he said yes. and when they asked him for a polygraph he agreed to that too. but here's the thing with that last part, the polygraph. >> he failed the test. >> that's a bad sign for you, right? >> that's a bad sign for him, yes. doesn't tell you that he's guilty, but he was a very strong person of interest. >> and what's more, the detective had been speaking with jamie's friends who said the relationship wasn't fine. in fact the couple had a fight and were on the verge of a breakup. all of which just led to more questions. >> basically, he went over every aspect of the relationship.

just questioned him on his whereabouts. tried to get him to confess. >> and if a failed polygraph wasn't suspicious enough, then listen to what the detective says chuck told him next. >> he said he had done some bad things and wouldn't tell us what. >> did you look him in the eyes and say, is one of those bad things killing jamie hart? >> i did. he denied it. at that point in time, i really thought he could be our killer. >> and the more you started to think he was the killer, how does he react to that? >> he's very nervous. he just acted like -- as if he was guilty. >> chuck was free to go, but as authorities waited for his dna to be processed, the detective developed a theory of the crime that made sense to him. >> he was in love with her. he didn't want to lose her. and they were having some issues in their relationship. >> so the boyfriend, a likely suspect, was in the crosshairs. but when the dna results came back -- >> the dna was not a match. >> so were you able to rule out chuck cruz then once you got

that dna checked? >> i didn't rule him out completely, no. >> that was enough for you with the friend, who she was with the night before. you ruled him out after you got the dna, correct? >> i did. the other guy wasn't her boyfriend. he hadn't flunked polygraphs. he wasn't in a bad relationship with her. chuck was. >> but they didn't arrest chuck. months went by and the detective kept investigating him. authorities seized his computer, searched his car. all the while chuck was saying they were looking at the wrong guy. >> there's a lot of people that won't confess to a murder for obvious reasons. >> at that point, he was a person of -- strong person of interest, but i still didn't know if he was my killer, so we continued the search. >> the investigation dragged on. life for the students on campus began to go back to normal. but when police were called to the scene of one house party, it wasn't because of noise or underage drinking. another woman was in a fight for

her life. coming up, a student at a party ends up a prisoner in a stranger's apartment. >> immediately he grabs he and starts choking me again. >> when "dateline" continues. . ♪ a pair of jeans that fit just right ♪ ♪ and the radio up ♪ get 5 boneless wings for $1 with any handcrafted burger. only at applebee's.

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and headache may occur. tell your doctor about your medicines and if you're pregnant or planning to be. ♪♪ otezla. show more of you. when chuck cruz's girlfriend was murdered, he was immediately considered a person of interest. they said that you were acting

nervous, that you were acting like you had something to hide. >> they interpreted all these things as signs of my guilt rather than a distraught boyfriend. at the time i had long hair, and this was a cowboy town. that was considered to be weird and unusual. >> as for those bad things he told the detective he'd done, he explained to us he was referring to a petty argument they'd had just days before jamie's murder and the guilt he felt from not being with her the night she died. >> do you remember what you were arguing about? >> a loaf of bread. the grocery stacker had put a cantaloupe on a loaf of bread. and she was upset that the sacker had squished the bread. and -- i told her it wasn't that big of a deal. and we had picked our sides, and we argued about something as stupid as a loaf of bread.

>> and now he says he could hardly grieve with police breathing down his neck. what's it like waking up every morning and knowing that you're under a cloud of suspicion? >> incredibly depressing. >> he left college station, moved home to be with his family near dallas, who spent money to hire a defense attorney. >> the biggest thing that was going through my mind the whole time was that i didn't do it, they don't know who did it, and the guy who did it is out walking around and likely to prey on more victims. this monster is walking free while they're wasting their time on me. >> kelly brown of the "eagle" newspaper was writing front page stories about the unsolved crime in the college town. >> and it really shook the community because this is an area that isn't used to seeing this type of crime. >> and kelly was hearing talk that the police had a suspect. >> but there was no arrest, and that's what kept everybody

saying, well, then, okay. was it the boyfriend? was it, you know, someone that's still out there? is he going to strike again? >> it was scary of course. and students like kristin lancaster followed the investigation. >> did people change their behavior patterns because of this crime? >> to a certain degree, but i think it was short-lived. i mean, people went back to their classes and their business, yeah. you start rationalizing that maybe, you know, she trusted the wrong person. >> this doesn't happen to you? >> exactly, yeah. >> and then it was late october, half a year since the murder of jamie hart. kristin didn't know it yet, but she was about to become part of a chain of events that only deepened the mystery. >> i think maybe i went to classes that day. i'm not exactly sure. i know that the evening time rolled around. i think it was a friday. >> a friend invited kristin to a party. >> and she said, you know, i'm having a little get together at my house. why don't you come by? >> kristin drove over to the

apartment complex in bryan, texas. that's the town next to college station. >> the door is open. there's a few people inside. there's some music playing and people having some drinks. >> she struck up a conversation with her friend's upstairs neighbor. he was 24, hadn't been to college, but mixed in easily with the students. >> was he kind of a likable guy? >> he seemed, yeah, very likeable. he was very approachable, seemed very nice. >> in fact, he had no problem sharing intimate details with kristin about his personal life. >> he had been married, and somehow the conversation, you know, goes into him telling me how he had found god. i made a lot of mistakes. i wasn't a great husband. >> you guys got into quite the personal conversation for having just met. >> well, i was young and i think that was normal, and he was drunk. >> not long after the party started it abruptly ended. kristin's friend hosting the party got into a fight with her boyfriend. >> there was alcohol involved and so it was -- worried that it would get out of hand. >> everyone left. but not kristin.

she was concerned about her friend and stuck around talking to the upstairs neighbor. >> so you were feeling protective. >> yeah. he said to me, you know, are you -- you know you're worried about your friend? i said, yes, i am. and he said we can go to my apartment so you can be close to a phone to call. >> she and the neighbor walked up the staircase to his apartment. >> it's directly above her apartment. and he opens the door. and i was barely a step into the door and he just sort of kind of pushes me in, slams the door shut. >> he locks the door and immediately grabs a remote that was right there and turns the stereo up to this deafening volume, just deafening. >> kristin reached for the door to leave. >> and he pushes me back. and that's when he starts making some demands. all of a sudden it's very serious and aggressive. and i am almost to the point where i thought he was joking. >> but he was serious. demanded she undress. >> i kept arguing, i'm not going do it. he's, like, you're going do it. and that's when he runs over and he grabs me by the throat. he's choking me and choking me. and then the second he lets up,

i scream as loud as i can. and then immediately he grabs me and starts choking me again. and this time he picks me up almost by the throat and sort of, like, pulls me back into the bedroom that's in the back. >> you're a prisoner in this apartment now? >> yes. and he puts me on the mattress, and this is the first time i black out. i wondered if this -- for a second, this was it. >> i could die? >> yeah. he's like -- has his hand still on my throat and he's sort of shaking me. >> kristin couldn't fight him off physically, so she tried to talk her way out of a sexual assault. >> i said you don't want to do this and he stops and he says, why don't i want to do this? and i say, well, because i have hiv. and you can tell he's thinking about it for a second. and he says to me, he says, "well, guess what, so do i." >> the lie didn't work. she tried something else. >> i was, like, "well, what about finding god and trying to work on yourself? i actually was able to stall him for quite some time. i must've gotten off the bed and

we were standing talking. and i remember that's when i started to just stomp my foot. like, and i was sort of, like, trying to make it look like i was making a point and stomping my foot and then he grew angry again. >> he threw her back on the bed, his grip on her neck tighter as he sexually assaulted her. >> he's squeezing so hard at this point in time that it felt like the bones in my throat were cracking. i said, "if you keep doing this, you're going to kill me." and he sort of looked at me and it was this half smile, and he looked at me for a second, and he just said, do you think i actually care about that? >> is that when you feel like you're looking in the face of evil? >> i mean, he -- i knew then completely in that moment that he intended on killing me. coming up -- a knock at the door. >> this is, like, a miracle. >> and doubt. >> i just couldn't believe, like, nobody believed me. >> when "dateline" continues. n . (announcer) and offer the best in entertainment like disney+, hulu, and espn+, with a galaxy s21+ 5g when you buy one. only from verizon.

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here's what's happening. a new "washington post" article

alleges the governor ran a hostile workplace for decades. the people of new york deserve nothing short of excellence. his office also responding to an article that brought forward a third former aide describing inappropriate workplace treatment. he says display of affection are, quote, what people in politics do. now back to "dateline." welcome back. i'm craig melvin. just months after one woman was raped and killed in a texas college town, a second woman was under attack in a nearby community. kristin lancaster was certain the man end turned out to be the beginning of a fierce fight for truth. back to face of evil, here as

andrea canning. >> 19-year-old kristin lancaster was preparing to die. when you're possibly in the last moments of your life, when you think that someone is going to kill you, what is going through your mind? >> i had a moment where i thought about, i wish i had told all the people that i loved, you know, that i loved them. >> she was in a stranger's apartment being sexually assaulted, drifting in and out of consciousness. >> i black out, but then i start to come to again. and it's -- you know, the scenes in the movies where the bombs explode and everything's really fuzzy, you can't hear, like, everything's, like, coming through this fog. >> suddenly, the man stood up and left the room, ordered her to remain quiet. >> and i scream as loud as i can, "call the police. call the police." >> turns out the bryan police were at the door. >> so my friend had heard me screaming and stomping and had called the police. >> this is like a miracle. >> it was, yeah. >> -- that in the nick of time

the police show up. that only happens on tv. >> i know. believe me, i know. they ran in. i was just curled in a fetal position on the floor just shaking, shaking uncontrollably. i remember them asking me what happened and i just -- the words were just coming out so fast. >> the cops took the man away in handcuffs and kristin slept on her friend's couch that night. the friend called the police to see what would happen next. >> she found out that they didn't book him for sexual assault charges. >> in fact, kristin's attacker, the man who almost killed her, had been released. that must have been a tough pill to swallow. >> it was terrifying. i just -- i thought he was going to come and find me and kill me. >> down at the police station, the man had given a wildly different version of events. eric buske is the current bryan police chief. he wasn't with the department back then, but says the suspect told investigators that he and kristin had a fight over drugs. >> she got angry when he substituted aspirin for cocaine, and she went off in a rage when that occurred. >> i think he had told them some

story about how it had been a drug deal that had gone bad. and so then i was crying rape. >> after the attack, police charged him with unlawful restraint, a misdemeanor. the next day, kristin and her dad went to the bryan police department to find out why her attacker wasn't charged with something more serious. >> i was furious. because i had thought in this moment that i survived, i survived. like, this is it. this guy is going down. >> she met with the detective who asked her questions, lots of them. >> i had bruises all up and down my throat. i couldn't swallow. and then at one point in time the detective asked me to place my hands on my own throat, and i mean, which even then, like, psychologically, like, that was just even traumatizing. >> why would he want you to do that? >> because i did that and he looks at me and he says, "well, those could've been self-inflicted." >> what did you say to the detective who's coming up with these theories? >> i mean, i was hysterically

crying and telling him, like, "this man tried to kill me." you know, and he would just say, "well, that's not what he says." of course that's not what he says. >> kristin says that despite her bruises, police treated it like a "he said/she said" story. how angry were you getting? >> i was furious. i just couldn't believe, like, nobody believed me. >> chief buske maintains the detective was just doing a thorough investigation. >> everything i've read indicated the detective did believe her. you know, sometimes when you're conducting an investigation, your job is to get to the truth as a detective and you're going to have to ask some hard questions. >> they interviewed her attacker again, and a few months later did charge him with sexual assault. >> the unlawful restraint was still in place, and we booked him on first degree sexual assault. >> the case went to a grand jury, but it was decided not to indict him. >> so the sexual assault charges were dropped, because they felt that there was insufficient evidence. >> oh, that must have been tough to hear that. >> it was very tough to hear that. and it was at a point in time though when i found that out i

just -- i didn't feel like i had any recourse. >> she did talk about the case later with reporter kelly brown. >> it bothered me at the time because i wondered, why didn't the grand jury indict him for at least attempted sexual assault? but it seemed a little troubling to me that -- what were we missing? what part of the story did we not have? did the detectives say something that made them think maybe it was consensual? >> he was still facing the misdemeanor charge of unlawful restraint scheduled to go to court down the road. in the meantime, he was a free man. he's out walking around. >> he's out walking around. >> in the next town over, detectives at the brazos county sheriff's office were still working the jamie hart murder case in addition to keeping an eye on jamie's boyfriend chuck, they say they followed up on hundreds of other leads and tips. but no one in that department looked at kristin's case for a possible connection. >> you were sexually assaulted.

jamie hart was sexually assaulted. did you start to think that these could be connected? >> i didn't think they were connected. and that was primarily because with jamie there was a boyfriend that may have been involved. it was a romantic relationship that went wrong. it wasn't some random occurrence by a stranger. >> kristin was now living with overwhelming anxiety and dread, which she says manifested into dangerous behavior. >> instead of being afraid of everything, i became afraid of nothing. i -- you know, i just became completely risk seeking. >> what kind of things would you do? >> i think i started drinking heavily for a while after that. you know, i'd hop on the back of a stranger's motorcycle after he'd had three beers. and it took a long time to really get out of that hole. >> just as kristin was starting to turn a corner, her attacker was due in court on the misdemeanor charge, but nothing came of it. he didn't even show up. >> i'd done what i needed to do.

and part of me just wanted to forget it ever happened. >> reporter: but she couldn't. kristin was about to walk right into another crime scene in college station. coming up -- a shockingly brutal murder and the suspect makes a big mistake. >> the clothes were different than what he told us. every time we walk into the door. it's just to be sure. just to be sure! tide antibacterial fabric spray. needles. essential for pine trees, but maybe not for people with certain inflammatory conditions. because there are options. like an “unjection™”. xeljanz. the first and only pill of its kind that treats moderate to severe rheumatoid arthritis, psoriatic arthritis,

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losing a tooth didn't stop you but your partial can act like a bacteria magnet, putting natural teeth at risk. new polident propartial helps purify your partial and strengthens and protects natural teeth. so, are you gonna lose another tooth? not on my watch! >> it was may of 2000, six

months since kristin had been assaulted. her attacker had failed to show up in court and seemed to have just disappeared. >> he didn't show up? >> didn't show up. >> in the next town over detective kenny elliott continued to work the jamie hart murder case. he'd spent the last year casting a wide net for possible suspects. >> you took dna from 70 people? >> i think 77. mainly people that were being booked into jail for violent crimes. anyone that was in the area that just didn't want to talk. we took dna from everybody that would give it, practically. >> but he also had never taken his eye off of her boyfriend, chuck cruz. >> there was just something that was bothering you about chuck cruz? >> there was a lot bothering me about chuck cruz. >> so the brazos county sheriffs office kept investigating chuck, even communicated with the d.a. about possibly convening a grand jury. chuck and his lawyer spoke to the detective on many occasions. and the detective continued to think chuck's behavior was suspicious.

and that he still seemed nervous. did you ever think that maybe the reason that chuck cruz was acting this way was that you guys were coming down pretty hard on him? and he's -- he's lost his girlfriend. i mean, is there a way to act? >> i don't know, but he had several things going against him, and we just couldn't walk away from him. we either had to prove that he did it, or prove that he didn't do it. >> but chuck says he should have been cleared almost right away. so even though the dna didn't match -- >> there was no match, but they insisted on targeting me as the prime suspect. they were trying to build a case that wasn't there. >> while chuck's life had been on hold for a year, kristin was starting to feel like her old self again. in the six months since her attack she'd taken up running, had a new boyfriend. and though kristin hoped the pain of that horrible night was behind her for good, it wasn't.

>> there's police tape everywhere. >> may 28, 2000. kristin had just arrived to visit friends at an apartment complex. there was no reason -- not then anyway -- to think her case was connected to the scene unfolding there. >> police cars and ambulances and all kinds of, you know, vehicles. like, emergency response vehicles everywhere. >> and now the sight of police tape sent memories rushing back. >> it was just, you know, fear. >> firefighter leon moore had arrived at the apartment complex early that morning, after a neighbor reported smoke in one of the units. >> the bedroom door was open and we could see some flames. they were on the carpet, so we had a water extinguisher that we used and put the small fire out. >> there on the floor, a body. >> we backed out and made sure that we preserved as much evidence as we could. >> he sensed foul play, not just a fire, and called for detective jeff capps of the college station police department. >> it looked like her body had

kind of been propped up onto the bed. she was nude from the waist down. >> this is really disturbing. >> it was. >> the victim was 21-year-old carolyn casey, a day care worker. her parents anita and larry, so proud of their eldest daughter. >> she was wonderful with kids. all the kids loved her. everyone loved her. >> never could they have prepared themselves for the dreadful phone call they received. >> is your daughter carolyn casey? i said, yes. i think he said, well, there's been an accident and your daughter's dead. a fire. >> when carolyn's younger sister, amanda, learned the news, she collapsed with grief. >> i just -- i screamed really loud. made my ears ring from my screaming. >> they've got this wrong? >> yeah. something's wrong. she didn't -- she didn't die. i said, no, she's not dead.

>> what was the turning point? >> i called her apartment. and she didn't answer. detective capps did say it was homicide. >> i think we -- we had a strong feeling that possibly there was some type of sexual assault that occurred and that somebody was trying to cover up some evidence. >> kelly brown of the "eagle" newspaper had another story to write. >> this is a community that's not used to a lot of murders. it's not used to violent crimes like this. and it certainly wasn't used to having a murder victim being set on fire. even law enforcement, they thought, what do we have on our hands here? >> on the night of carolyn's murder, there had been a small party in one of the apartments, and now the detective was canvassing the complex, looking for leads. so you're literally knocking on doors? >> yes. >> in one unit, two men answered. one of them had been to the party.

his name was ynobe matthews. >> he mentioned that he did attend this party. she was there. >> like many people who'd attended, ynobe agreed to an interview, his down at the police department. he was friendly and cooperative, said carolyn had left the party before he had. >> he later left the party. went with another female that was at the party over to a convenience store that was close by and bought some cigarettes. >> ynobe gave the detective a dna sample and supplied the clothes he'd been wearing. to verify his alibi, the detective pulled surveillance video from the convenience store and noticed something. >> the clothing that he was actually wearing was different than what he had just told us. why isn't he telling us the truth? >> ynobe claimed he'd simply forgotten and then handed the detective the proper clothing. no forensic evidence found on the clothes connected him to the crime scene. >> so this wasn't your big moment. >> no, it wasn't. >> the big moment did come though, just a few nights later

when the pieces of this puzzle finally came together. coming up -- an arrest of a familiar suspect. >> i didn't think he would do it again. >> when "dateline" continues.

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welcome back. as carolyn casey's family grieve their loss, detectives struggle

to make sense of the crime scene. as they canvass the area looking for leads a possible suspect emerged. here's andrea canning with a final chapter of face of evil. >> it was two nights after the murder and fire. detective capps made a discovery, one that would finally connect the dots in the series of crimes that had terrorized this college town. >> i spent that evening basically reading through all these reports. >> the detective had ordered background checks on some of the people who attended the party in carolyn's apartment complex, including ynobe matthews. it turns out there were several police reports in the file accusing ynobe of a number or crimes. >> mr. matthews had a tendency to try to sexually assault females, and in the process of that, he would choke them if they were not willing to have sex with him. >> how did carolyn die? >> her death was ruled a

strangulation, so things started kind of matching up. >> ynobe had never been convicted of sexual assault, but in the files the detective read the account of one particularly brutal attack. the case ended up being charged as a misdemeanor, unlawful restraint. it was kristin's. ynobe was the man she says almost killed her. >> i was certain that he had done this before. but at the same time, i didn't think he would do it again. >> the detective called ynobe mathews back down to the station for another interview and decided to pull a fast one with his suspect, telling him he was about to get dna results from the crime scene. were you really about to get it that quickly? >> we weren't going get it that quickly that day, but trying to get him to believe that we had that information, that we had everything that we needed. i had contacted my supervisor earlier, and i told him, if he would page me, just say put in -- type in the words that says dna matches.

>> and right on cue, the detective's pager went off. >> and i showed it to mr. mathews, asked him to read it. it said "dna matches." >> so what's his face like when he looks at that match? >> he became pretty emotional. and he said he -- it was an accident, but he had killed her. >> the detective called carolyn's parents and gave them the news of the confession. >> they said, i think we've got him. i said, well, how sure? he said, i'll bet the farm on it. >> it was the next morning when kristin lancaster opened up the newspaper and learned her attacker had been charged with murder. >> i felt overwhelming guilt, just overwhelming guilt knowing that he'd killed someone and that, you know, perhaps i hadn't tried hard enough to make people believe me. >> did you feel like a life could have been saved if you had been taken more seriously? >> oh, yes, carolyn would still

be here. i mean, there's no doubt. >> and what about the woman at the start of our story? jamie hart's case had been handled by the brazos county sheriff's office. but after ynobe was arrested, it didn't take long for the college the dna. what they found? ynobe was also jamie's killer. what's that moment like? >> i remember the feeling of wanting to feel relieved, but all i could think was, this is exactly what i knew was going to happen. he struck again, another girl is dead, and another family has lost their precious daughter. >> chuck says to this day he misses jamie and has never gotten over being viewed as a suspect. >> having to spend such a long time under investigation for the death of a loved one, it hurts.

>> it's like a scar. >> very much so. very much so. >> do you feel bad about that at all, that he was put through that? >> i'm sorry that he had to go through that, yes, but if i had to do the investigation over, i wouldn't change anything. i'm sorry he lost the love of his life, but we had a job to do, and we had to either arrest him for murder or clear him. we cleared him. >> but before jamie, before kristin, before carolyn, there was another victim who soon learned she was also connected to this horrifying series of events. her name is misty johnson. >> if i didn't let him rape me, he would have killed me. >> like kristin, misty reported her attack to the bryan police department. but ynobe denied it, claiming it was consensual, and misty was too traumatized to help police in the investigation. >> it was probably within a week, i quit my job and left town. i was scared.

>> she now regrets that decision. her attack happened first, months before jamie was murdered. >> i feel like if i would have stayed and fought him through the police department, that possibly he wouldn't have been able to go on to hurt anyone else. >> and kristin is left with the memory of an assault that according to the law never really happened. >> i was so angry that two people had to die in order for someone to believe me. >> did the system fail? >> it failed me. it failed carolyn. it failed jamie. >> you think about them a lot? they were total strangers to you. >> but they're my alternative future. i mean, they're what could have happened to me. i mean, they're what could have happened to any of us. >> a jury convicted ynobe matthews of carolyn's murder and sentenced him to death. he also pleaded guilty to jamie's murder. kristin faced him in court during the penalty phase. >> it was terrifying.

and i had to testify, and i met carolyn's family and jamie's family. they all came out afterwards and gave me a hug. it helped me realize that their families didn't hold any grudge against me. >> it's not her fault that my sister died. and kristin should have no guilt over that. >> with the casey family as witnesses, ynobe matthews was executed three years later. if there is a lesson to take from this story, it is one that comes directly from a survivor herself, someone who has learned the hard way to cherish life's moments, each and every one. >> it makes you realize how fragile your life is, you know? and that anybody can take it, you know, in a moment's notice. this story, you know, for them, that's it. that's their life story. the final chapter's been written. but for me i get to keep going on. >> what would you call yourself? >> i mean, people have called me

a survivor. i would call myself lucky. >> that's all for this edition of "dateline." i'm craig melvin. thanks for watching. i'm craig melvin. >> and i'm natalie morales. >> and this is "dateline." it's not a play, isn't it? >> are you sane? >> sane? that's relative. >> guilty, hmm. i wouldn't do anything i felt guilty about. >> you may think you know the charles manson story, but not like this. >> things that police had never seen before. >> sharon tate begged her, please don't kill me. >> he was trying to take advantage of peace and love, flower power. >> even now, decades later, the