student. found on a lonely road in texas. >> we figured she had been sexually assaulted and dumped here. >> reporter: tough questions for her boyfriend. >> where was i the night before? what had i been doing? when had i last seen her? >> i really thought he could be our killer. >> reporter: but while police try to prove it, another attack. >> he has got me by the throat and he's shaking me and he's yeg at me, telling me not to say a word. >> reporter: you're a prisoner in his apartment? >> yes. >> reporter: a college campus gripped by fear. a growing list of suspects. a growing list of victims, too. >> her body had kinda been propped up onto the bed. >> reporter: even law enforcement, they thought, "what do we have on our hands here?" >> reporter: there's growing danger because police are looking in the wrong place. >> i lived to tell and then nobody believed me. >> this monster is walking free while they're wasting their time on me. >> reporter: account killer be

>> it makes you realize how fragile your life is, you know, and that anybody can take it. >> reporter: i'm lester holt and this is dateline. 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. and he just said, do you think i actually care about that? >> that when you feel like you're looking in the face of evil? >> i knew then completely in that moment that he intended on killing me. >> little did she know -- that in this college town-- she wasn't the only one. >> he said that he would go to jail for murder before he'd ever go to jail for rape. >> what is going through your mind? >> i wish i had told all the people that i loved, you know, that i loved them. >> but was their private horror connected to a very public mystery? >> everyone's saying, "what is going on in this community it just had people asking what's gonna happen next. >> more women connected by tragedy and -- by questions.

sooner? >> i was so angry that two 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&m -- and in 1999 -- the home to 21 year old student jamie hart. >> i was immediately struck with her beauty. at the time. he says jamie was the light of his life. 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 showed me a world full of color. >> and she was a loyal friend, funny, outspoken. >> she would tell you exactly what was on her mind at all

jamie's roommates couldn't find her. they called chuck. >> i got a call asking me if i knew where she was. and i said, no, she didn't come over here last night. i didn't know where she was. i hadn't talked to her the night before. and-- and i went to work. >> that same morning detective kenny elliot of the brazos county sheriff's office was summoned to the scene of a disturbing discovery. >> there was a young female, appeared to be in her early 20s. she was nude. she had extensive road rash on her entire body. and she was obviously deceased. >> reporter: a jogger spotted the victim in a ditch, nine feet from the side of the road. >> when i arrived there was probably half dozen officers here and they taped off the area, blocked. traffic, and at that point we started conducting a search of the area. we figured that she had been sexually assaulted and dumped here. less than a mile away, deputies discovered what was presumed to

across the entrance to an oil field. another nine miles from there- an abandoned vehicle -- its engine still running. and that raised suspicion. we sent a team over there to process the car. >> and inside the car, a drivers license that belonged to jamie hart. when detectives showed up at chuck's workplace that afternoon, he says his heart sank. >> there was this building sense that something was wrong. and the appearance of police officers is never a good sign. and when they told me that she had been found dead, it felt like i had been hit by a truck. >> reporter: so your sense of dread was coming true? >> yep. realized, fully realized. >> did fear spread throughout the campus? >> oh, yes.

19 year old freshman. >> my brother actually worked with jamie at the time i'll never forget him coming home devastated. >> reporter: a killer in a college town is terrifying. >> very much so, yes. >> this is something that happens in chicago. it something that happens in houston. it's not something that happens in bryan college station in aggieland. >> kelly brown is the editor of the eagle, the local newspaper >> i think at the time people were hoping this is a drifter that just kept on going. because the location of her body. >> sheriff's deputies canvassed the crime scene, searched jamie's car. and looked for eyewitnesses. >> talked to several hundred people, and no one's seen anything. >> turns out, there were no fingerprints inside the car. but duri an ngtopsy the medical examiner did recover dna from jamie's body, dna which likely came from her rapist and killer. >> did you put the dna into a database? >> we put it in codus.

>> none. >> no eyewitnesses, no fingerprints, no dna matches. the investigation wasn't off to a good start. >> and that's when we started contacting people at her place of employment, friends, roommates. >> reporter: did she have any enemies? >> everybody seemed to love her. >> detective elliott began to retrace jamie's steps on the night of the murder. jamie was taking time off from her studies at texas a&m and was working at a pizza parlor. her shift had ended around midnight. >> we contacted everybody on-- that she delivered pizzas to, and nothing out of the ordinary. >> after work, she'd headed over to a friend's house. >> he said they were there watching movies and she left his house around 4:30 in the morning. >> reporter: what time did you think that she was killed. >> we got the call, i think, at 7:15 a.m., so between 4:30 a.m. and 7:00. >> the male friend, a college student, was the last known person to see jamie alive.

they were friends, and had been for some time. >> the friend's grief seemed genuine, but something was peculiar. when investigators asked for a dna sample. >> he said no. >> no? >> and of course we wanted to know why. was he the killer, or was he not? >> the detective was determined to anticipate that question. so he put the young man under surveillance, followed him to a local restaurant. >> reporter: and are you hidden somewhere in the restaurant? >> i'm kinda back in a corner, yeah. >> he watched the student have a few drinks, and when he left, the detective snagged the dirty beer mugs and sent them out for dna testing. the results would take weeks -- leaving a town full of young people on edge. >> dads and moms were telling their college-age kids, "be alert everywhere you go." go with people when you go out. don't be alone."

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>> reporter: 21-year-old jamie hart had been sexually assaulted and left to die on the side of a busy roadway. >> i could barely function.

about was loss, that she's gone from my life forever. >> reporter: 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 thememmourning with the family. and then acting as a pallbearer for her funeral. >> reporter: 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. >> reporter: one possible suspect that male friend jamie visited the night of her murder. he'd refused to give police a dna sample for testing. >> reporter: that's kind of odd,

>> a lot of people will not give up dna. too much tv. >> reporter: but the detective had snagged a sample from a beer mug and when the dna finally came back, he was not a match. reporter: you felt confident that you could rule him out, based on -- >> yes. yes. >> reporter: the dna not matching? >> yes. >> reporter: 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 her boyfriend. >> the questions that they asked, focused on where was i the night before, what had i been doing. >> reporter: looking at you as a possible suspect?

that that was what they were for information. >> reporter: chuck told the detective that before jamie was killed he hadn't seen her for two days. on the night of murder, he said he was at home. >> i was playing computer games like a good nerd. >> reporter: 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. >> reporter: 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. >> reporter: 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. >> reporter: that's a bad sign for you, right? >> also bad sign for him. yes. doesn't tell you that he's guilty. but he was a very strong person of interest. >> reporter: 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

all of which just led to more >> basically, he went over every aspect of the relationship. whereabouts. tried to get him to confess. >> reporter: 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. >> reporter: did you look him in the eyes say, "is one of those bad things killing jamie hart?" >> i did. he denied it. at that point in time, i -- i really thought he could be our killer. >> reporter: 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. >> reporter: 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.

likely suspect was in the cross hairs. but when the dna results came back -- >> the dna was not a match. >> reporter: so were you able to rule out chuck cruz, then, once you got that dna checked? >> i didn't rule him out completely, no. >> reporter: that was enough for you with -- with the -- 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. >> reporter: 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. and 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 to search. >> reporter: the investigation dragged on, life for the

back to normal. parties every weekend. 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. >> i screamed as loud as i can. immediately, he grabs me and starts choking me again. >> when "dateline" continues. so when your tax refund arrives, make it go a little further at walmart. from electronics, to home decor, even tires, get low prices on everything you need to get more fun out of your tax refund. walmart.

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when chuck cruz's girlfriend was murdered, he was immediately a strong person of interest. >> reporter: they said that you were acting nervous, like you

>> 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. >> reporter: do you remember what you were arguing about? >> a loaf of bread the grocery sacker had put a cantaloupe on a loaf of bread. [ laughs ] 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. smiem and. >> and now he says he could hardly grieve with police breathing down his neck. >> reporter: what's it like

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?

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. >> reporter: 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, was it a friday? >> a friend invited kristin to a party. >> and she said you know im 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.

with her friend's upstairs neighbor. he was 24, hadn't been to college, but mixed in easily with the students. >> reporter: was he kind of a likeable guy? >> he seemed, yeah, very likeable. yeah, 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-- 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. >> reporter: yeah, you guys-- yeah, you guys got into quite 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?

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. i was barely a step into the door and he just sort of door shut. >> he locks the door and was right there and turns the 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 almost to the point where i thought he was joking. >> but he was serious. demanded she undress. >> i kept arguing, "i'm not gonna do it." he's, like, "you're gonna 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.

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 a 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 dont want to do this and he stops and he says, "why don't i wanna do this?" and-- and i say, "well, because i have-- 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, you know-- you know, you finding god, and, like, 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

>> 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?" >> reporter: 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 couldn't believe like nobody believed me.rly unique to wear, go to your wardrobe. your jewelry wardrobe... jared the galleria of jewelry... for the ultimate selection of levian. only levian, masters of jewelry design for centuries... makes jewelry with chocolate diamonds. gorgeous, trend-setting looks...

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>> reporter: 19-year-old kristin lancaster was preparing to die.

kill you, what is going through know, that i loved them. >> reporter: 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. >> reporter: 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." >> reporter: turns out, the bryan police were at the door. >> so my friend had heard me screaming and stomping and had called the police. >> reporter: this is like a miracle -- >> it was -- yeah. >> reporter: that in the nick of time the police show up. that -- 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

i remember them asking me what happened and i just -- the words were just coming out so fast. >> reporter: the cops took the man away in handcuffs while 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. >> reporter: in fact, kristin's attacker, the man she said almost killed her, had been released. that must've been a tough pill to swallow. >> it was terrifying. i just -- i thought he was going to come and find me and kill me. >> reporter: 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."

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. i had thought in this moment that i survived, i survived. like, this is it. this guy is going down. >> reporter: she met with a 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 -- >> reporter: why? >> like, psychologically, like, that was just even traumatizing. >> reporter: why -- 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." >> reporter: 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 is -- this man tried to kill me." you know, and he would just say, "well, that's not what he says." i'm, like, "of course that's not what he says." >> reporter: kristin says that despite her bruises, police treated it like a "he said-she said" story.

>> i was furious. i just couldn't believe, like, nobody believed me. >> reporter: chief buske maintains the detective was just doing a thorough investigation. >> everything i've read indicated the detectives did believe her. you know, sometimes when you're conducting an investigation, your job is to get to the truth as a detective you're going to have to ask some hard questions. >> reporter: they interviewed her attacker again and a few months later did charge him with sexual assault. >> the unlawful restraint was still in place. and then we booked him on first degree sexual assault. >> reporter: the case went to a grand jury but it decided not to indict him. >> so the sexual assault charges were dropped, because they felt that there was insufficient evidence. >> reporter: 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 didn't feel like i had any recourse. >> reporter: she did talk about the case later with reporter kelly brown.

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?" >> reporter: 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. >> reporter: 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. >> reporter: 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.

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. >> reporter: 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. >> reporter: 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. >> reporter: just as kristin was starting to turn a corner her attacker was due in court on that 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.

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months since kristin had been assaulted. her attacker had failed to show up to court and seemed to have just disappeared. >> reporter: he just 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. >> reporter: you took dna from 70 people? >> i think 77, mainly people 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. >> reporter: there was just something that was bothering you about chuck cruz? about chuck cruz. >> so the brazos county sheriffs office kept investigating chuck -- even communicated with the da about possibly convening a grand jury.

the detective on many occasions. and the detective continued to think chuck's behavior was suspicious. and he still seemed nervous. >> reporter: 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 lost his girlfriend. i mean, is this a way to act? >> i don't know, but he had-- he had several things goin' 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. >> reporter: 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.

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. >> and 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 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-- 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.

and called for detective jeff capps of the college station police department. >> it looked like her body had kinda been propped up-- onto the bed. >> she was nude from the waist down. >> reporter: 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. prepared themselves for the dreadful phone call they received. >> "is your daughter carolyn 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. >> and i just-- i screamed really loud, made my ears ring from my screaming.

>> yeah. something's wrong. she didn't-- she didn't die. and 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 be set on fire. even law enforcement, they thought, what, 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

>> reporter: you're literally dock knocking on doors. >> yes. >> in one unit, two men answered. one of them had been to the party. his name was ynobe matthews he >> 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 and why is he not 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.

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 was certain that he had done this before. but at the same time, i didn't think he would do it again. abdominal pain. urgent diarrhea. it could be ibs-d new prescription xifaxan is an ibs-d treatment that helps relieve your diarrhea and abdominal pain symptoms. do not use xifaxan if you have a history of sensitivity to rifaximin, rifamycin antibiotic agents, or any components of xifaxan. tell your doctor right away if your diarrhea worsens while taking xifaxan, as this may be a sign of a serious or even fatal condition. tell your doctor if you have liver disease or are taking other medications, because these may increase the amount of xifaxan in your body. tell your doctor if you are pregnant, plan on becoming pregnant, or are nursing. the most common side effects are nausea

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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. >> reporter: 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. >> reporter: how did carolyn die? >> her death was ruled a strangulation. so things started kinda matchin' up. >> reporter: ynobe had never been convicted of sexual assault, but in the files the detective read the story one particularly brutal assault. a case ended up being charged as

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. >> reporter: the detective called ynobe matthews back down to the station for another interview decided to pull a fast one with his suspect telling him he was about to get dna results from the crime scene. >> reporter: what were you really about to get it that quickly? >> we weren't gonna get it that quickly that day, but tryin' 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. >> reporter: and right on cue, the detective's pager went off. >> and i showed it to mr. matthews. it said "dna matches." >> reporter: so what's his face like when he looks at that

and he said -- he -- it was an accident but he had killed her. >> reporter: the detective called carolyn's parents and gave them the news of the confession. >> said, "i think we got-- got him." i said, "well, how sure." he said, "i'll bet the farm on it. >> reporter: 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. >> reporter: did you feel like a life could've been saved if you had've been taken more seriously? >> oh yes, carolyn would still be here. i mean, there's no doubt. >> reporter: 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 station police department and the sheriffs office to compare

what they found? ynobe was also jamie's killer. >> reporter: what's that moment like? >> i remember the feeling of wanting to feel relieved. but all i could think was, "this is -- 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." >> reporter: 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 hurts a lot. >> reporter: it's -- it's like a scar? >> very much so. very much so. >> reporter: 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.

his life. but we had a job to do, and we had to either arrest him for murder, or clear him. we cleared him. >> reporter: but before jamie, before kristin, before carolyn, 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. >> reporter: 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 up to. i was scared. >> reporter: 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

able to go on to hurt anyone else. >> reporter: 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. >> reporter: did the system fail? >> it failed me. it failed carolyn. it failed jamie. >> reporter: you think about them a lot? they were total strangers to you. >> but they're my alternative future. i mean, they're what could've happened to me. i mean, they're what could've happened to any of us. >> reporter: 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. i had to testify and i met carolyn's family and -- 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, you know. >> it's not her fault that my

and kristin should have no guilt over that. >> reporter: 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. >> reporter: what would you call yourself? >> i mean, people have called me a survivor, i would call myself lucky. that's all for this edition

we'll see you tomorrow at 8:00, 7:00 central with a date looip saturday night mystery and sunday at 7:00, 6:00 central. i'm lester holt. for all of us at nbc news, good complete. find out what it took for them to welcome home their son and daughter. and how much does your vote really count. find out why the person who gets the most votes might not end up becoming the democratic nominee. "everytime i lace up here i'm respresenting flint..." monte morris' has more on his mind than winning basketball games... see how he's bringing attention to the disaster in his home town... and how iowa state is helping. candy.. flowers... and heart balloons... they're three things valentines day has become known for... for a metro family...

more special. good evening. i'm erin kiernan. and i'm dan winters... the waiting is finally over... a metro family is complete... kevin schafer and his wife dawn welcomed little zander home this afternoon. zander is the second child they've adopted from the democratic republic of congo. you can see emma in pink welcoming her new brother. 13:39 we felt this was a good way to give back to kids and also build our own family and to just give some kids some love and theese two children have had some really rough start at life and we wanted to give them a new life and give them better opportunities 13:58 providing those opportunities was a long time coming. the schafer's started the adoption process three years ago. at one point the government of congo suspended adoptions. that eventually changed following negotiations between leaders in the u-s and congo. as the schafer's waited to complete their family.. they says it was their own family that kept them