As soon as i met her, i knew we were the Perfect Match for each other. Reporter alex kogut and Samantha Turner met within days of arriving on campus, besties from the beginning. Reporter you really clicked with alex. I did. Reporter right away. I did right away. Reporter why did you like her so much right away . I liked her because i could act so funny in front of her and i could act myself. If i had a problem, she was always there for me. Reporter by late september, alex and samantha were inseparable, swapping clothes and confidences. Sounds almost like you were sisters. Pretty much. Every second i saw her, we would have fun and laugh together. Every possible thing just made our relationship grow stronger. Reporter but on friday, september 28th, they were going off in different directions. Samantha was heading home to see her family. Alex was staying on campus, counting the hours until her longtime boyfriend arrived for a weekend visit. That afternoon, alex went down the hall to samanthas dorm room to say goodbye. It was around 3 00 maybe. And i was about to go home. And shes, like, can i pick out some clothes in your closet . And i was, like, sure. So, she took three of my shirts and a pair of my shoes. And she was all excited. Shes, like, claytonll be here in a half an hour. Reporter twentyone year old Clayton Whittemore was alexs boyfriend. And he was coming to spend the weekend. But first, alex had a swim team meeting. Reporter shed been swimming since high school, where Paige Whitney was the captain. You were the captain of the swim team. But you call alex more the heart of the swim team . Yeah, definitely. In high school, she definitely wasnt the fastest on our team. But she was one of the most important people on our team because she had the most heart. She would be behind you at every single one of your races cheering you on, wishing you luck. Reporter now paige and alex were teammates again. She mustve loved knowing that she had you to lean on . I feel like there was definitely that sense of security. Reporter that friday, the team meeting ran late. Alexs boyfriend got to town before it ended. Alex texted to apologize that she wasnt there to greet him. Please dont kill me she wrote. No worries he answered. Soon the two got together with a busy night ahead of them. Midway through the evening, samantha texted alex. And i told her, i was, like, cant wait to see you tomorrow. Love you, good night. You know, and then she said the same. Reporter but later, in the early hours of saturday morning, samantha was awakened by a call. Alexs mother was on the line. What in the world was up . She was scared. She didnt know where alex was, what she was doing. She had a sign, i dont know how. Something was wrong. And reporter her mother her mother contacted reporter just thought something was wrong . Yes. Reporter and called you . Yes. Freaking out. And i was, like, im home. I dont know. Reporter a fearful mother on the phone in the middle of the night, searching for her daughter. What had happened to set her off . Why was she so distraught . Sandra whitney is a good friend of alexs parents, becky and mark kogut. Shes paiges mom. They had gone off for a weekend vacation. And they had been texting that evening, and becky was sending her pictures of their hotel room. You know, you get to a hotel, hey look and alex didnt respond. And she tried over and over again. And she didnt respond. And thats not how their relationship worked. You text, you call, you always responded. Is that unusual, though, that she wouldnt respond in in college . Its a weekend, her boyfriends coming for the weekend. I imagine the first couple times, maybe she wasnt concerned. But when it was several, thats what raised flags with becky. Was it a little bit of mothers intuition, do you think . I imagine it was. Reporter alexs mom worked the phone frantically, trying anyone who might know where her daughter was. Finally, at 2 42 a. M. , she called the Campus Police to ask them to go to her daughters dorm room to check on her. Officer Michael Johnson. You took that call. I did. And you headed over to the dorm. Yes. And then what happened . Well, when we went there, i knocked on the door, i knocked twice. And since it was a welfare check, i say, well let me, let me see if this doors unlocked. Reporter it was. And officer Michael Johnson will never forget what was inside that room. It just seemed that something really bad happened there that night. Reporter what had happened in room 108 . Police were about to confront a frightening and confusing scene. You never come to work thinking youre going to see Something Like that. Reporter a young victim. But who is it . They were just telling everybody, you know, keep your door shut. Dont come in the hall. And we didnt really know what was going on. [hissing] uh i [sound of wrench] [intricate guitar riff] [engine starts] [guitar continues] if youve got a life, you gotta swiffer reporter officer Michael Johnson, a cop at the college at brockport, was on a routine welfare check at a dorm room early one saturday in september 2012, when he got the shock of his life. We dont see that level of violence that often. Reporter room 108 was wrecked. There was blood everywhere. On the bed, on the door, on a pillow on the ground. And in the center of the room, was a young woman, lying on the floor, facedown, her bloody hair falling over her face. It seemed very unnatural the way she fell, the blood splatter that was in the room, even the bloody footprints that were around her, all indicated that something violent had happened in that room. What feeling do you have when you see Something Like that . Well, the adrenaline kicks in and luckily, you know, you need that adrenaline at that moment. And it was just time to go to work. And if she was alive, i had to do all i could for her. Reporter officer johnson knew he needed help fast. I heard this guy yelling, and i thought it was a drunk college kid. Reporter hailey plymale lived across the hall from alexs room. The commotion woke her up. And i noticed the man, was like yelling for help and stuff. So i woke up and i started looking through my peoplehole. And it was a Police Officer yelling. Reporter lieutenant Daniel Vasile works with officer johnson on the campus force. He radioed me for the a. E. D. , so whats a a. E. D. . Thats the defibrillator. Okay. So, i arrived. I grabbed it. I went running to his location. What did you think when you saw what you saw . I couldnt believe it. I guess, you know, you never come to work thinking youre going to see Something Like that. Reporter hailey plymale was now glued to her peephole. She saw residence officials everywhere. They were just telling everybody, you know, keep your door shut. Dont come in the hall. And we didnt really know what was going on. Reporter the news was spreading. Hailey was fielding a storm of texts from worried students. Everyone was just so confused. And it was all just like, i dont know, you know. I think somebodys hurt. But i dont know whats happened. Reporter by now, the cops realized the young woman on the floor was dead. Hailey soon learned that too. What happened was the ambulance showed up. And the Police Officer said to the paramedic, we only need one of you to go in and to pronounce her. And the paramedic went in and came out, pronounced her jane doe. And it was just, like, oh, wow. I knew that that meant that they couldnt identify who it was and they left. And i woke my roommate up. And i said, you know, somebodys died. And she didnt believe me at first. And i told her, you know, like, they left. The stretcher had nobody on it. Reporter the students, on their phones, tried to stay calm, but it wasnt easy. After all, a College Residence is supposed to be safe. But now there might be a killer on the loose. We were really afraid. And, i mean, the Police Officers were like, youre okay. Like, were here. Youre safe. But we were really scared. Reporter hailey went over and over the events of that night in her mind. And she remembered something. About 1 15 am, as she was trying to go to sleep, an unusual sound. But was it related . It was, like, like, little, like, thud, thud. And then, it was, like, maybe, like, a pause. And then it was like more, and kind of another break. And some of them were louder than others. Reporter now, as the activity in the hallway intensified, hailey heard a line straight out of a cop show. The Police Officer said, this is now a crime scene. Nobody touch anything. So at that time, i knew that we had to just do our jobs and we had to preserve everything, you know, for the safety of the rest of the campus. Reporter the officers had a million questions. Number one, who was the girl lying with her face to the floor . Alex kogut, the girl theyd been asked to check on, had blonde hair. There were pictures of her in the room. The girl on the floor was a brunette. Was she alexs roommate . It was hard to know, her face was bloody, unrecognizable. So, then you must be wondering, well, wheres alex . Right. Yes. Reporter the cops learned that alex had entered the dorm with her boyfriend after midnight. And then they made a startling discovery. When they looked closer at the photos in the room, they saw a young man they recognized. In fact, theyd issued him a ticket that very night. So we knew who we wanted to look for at that time. Reporter it was Clayton Whittemore, alexs boyfriend. They needed to find him and fast. He might lead them to alex. If we have someone that did this violent act here in this specific room, you know, what is he capable of doing when he leaves here . Coming up, a missing boyfriend. An anxious best friend. I rushed here. 4 00 in the morning . 4 00 in the morning. And a mystifying murder. There were so many things that didnt make sense in the room, it was very hard to say, okay, this is what happened. Case closed. When dateline continues. Got a minute . Not for me, for you. New aveeno®. Positively radiant® 60 second in shower facial. Works with steam to reveal. Glowing skin in just one minute. Aveeno® naturally beautiful results® we cant stay here why . Terrible toilet paper ill never get clean way ahead of you. Charmin ultra strong. It cleans better. Its four times stronger. And you can use less. Enjoy the go with charmin. Reporter the campus cops investigating the murder in mclean hall werent sure who the victim was, but theyd recognized a young man in photos in the dorm room. Theyd seen that same young man when they were patrolling the campus earlier that night. I observed a couple coming down the street here on utica street. We could see that he had an open container in his hand. As he kept coming, we intercepted him right here on the sidewalk. I requested his i. D. I could see that it was an open beer can. And i explained to him that we have a local ordinance here that says that you cannot have an open container. Reporter did he seem angry . Was he agitated . No, he was actually reporter did he very cooperative. So i gave him the ticket and they started to walk away right down the sidewalk right here. Reporter the young man who got the ticket was Clayton Whittemore, returning home from a party with his girlfriend, alex kogut. And when they left, did they seem fine . They seemed normal to me. In fact, i was even doing smalltalk with the female that he was with, and was able to make her laugh a little bit, so if anything was bothering her, she didnt let us know. So, just a normal couple out on a friday night. And wasnt quite the last of him . No, as they both started walking away i observe him drop the beer can. And he just dropped it right onto the ground. And i made a comment that that could be another 100 fine. And he did comply and he went back and he picked it up and after doing that, thats when i saw him cross the street here. And the same time, the female stayed on this side of the street. And then they both continued to walk on separate sides of the street. Reporter alex and clayton had been dating for a year and a half by then. They were both from the town of new hartford, in central new york. They got together when alex was in high school. Clayton had already graduated. Now, they were trying to make a go of a longdistance relationship. They really wanted to make it work and stuff. And i think it was working. I think she really did love him. What kinda things did she say to you about clay, describing him or the time they spent together . It was kind of just Little Things here and there. Like, oh, i cant wait to see him. Like, i miss him. You could just see it in her eyes, that she really did want to be with him. Reporter clayton, number 21, had been a standout hockey player in high school. After he graduated in the spring of 2010, he spent a season playing for a college prep team in florida, living with a host family there. He was like the star player. He was the guy that scored the goals. Reporter Hunter Fernandez, one of claytons teammates, lived with the same host family. Paint a picture of clayton for us. He was hard working. He was a really nice guy. He was funny. We always had a good time. Did you guys ever get into a little bit of trouble . No, we never really got in trouble. We were, we were always busy. What about girls . Did you hang out with girls . Or was there time . Nope. Partying . Never. Drinking . He drank once. This sounds like the tamest bunch of hockey players i think ive ever heard of. Yep. Reporter it was hardly surprising that alex was drawn to another athlete. And clayton was a catch. Paige whitney, alexs swim team pal, knew that. Shed gone through high school with clayton, sat beside him in senior year math class. She felt like he deserved a lot more and that she was very, very lucky. Really . Yeah. So she considered herself lucky that he had chosen her . Absolutely. Watching them together, did it seem that he really cared about her, that he really liked her . He was absolutely. Happy to be in that relationship . Yeah, you know, you see them laughing together. You see them, you know, getting along so well. Reporter their twitter messages were lighthearted. They called each other dork and freak and lived out their lives in the twittersphere. Before clayton arrived that friday, alex had tweeted ahhh see you soon. Her family liked him, too. Theyd given him a care package for her; and her mom had contributed 20 towards gas for the trip. Reporter once alexs swim team meeting ended that day, the couple met up, had some alone time in her dorm room, then went to dinner. Alex and samantha were texting, of course. I asked, you know, like, how she was doing, what she was doing. And shes, like, oh, well, were out to dinner right now. And then they went out to a friends house. And then they came back to the dorm. Reporter on the way back, clayton got that ticket, and the cops saw the two walk away separately. Then at 12 13 a. M. , alex posted a cryptic tweet. Shouldve known it read. Shouldve known. What do you think it meant . It probably does have something to do with clayton, but i dont exactly know. Reporter minutes later, alex swiped her card to enter her dorm with clayton. It was 12 17 on saturday morning. So now investigators were desperate to find out where Clayton Whittemore was. And whether alex was with him. Luckily, we had all his information from the ticket that lieutenant vasile issued him. Reporter but clayton had been a model of cooperation then. What could he tell them, if anything, about what had happened in the dorm room that night . Whats your gut telling you happened . I couldnt put together what happened because it was so violent. There were so many things that didnt make sense in the room that it was very hard to just say, okay, this is what happened, you know, you know, case closed. What were the scenarios that you were thinking of . Maybe there was an altercation between the roommates. Maybe, possibly alex and clayton were on the run and this was the roommate that was on the ground. Maybe alex was abducted by clayton. Maybe clayton had hurt the roommate. A lot of things are running through your mind. Yes. Reporter lots of things on other peoples minds, too. At her parents house, Samantha Turner, alex koguts best buddy, was phoning all her friends. When she got through to her roommate, a college official got on the line and told her there was a situation. And then i broke down. And i grabbed my sister and i was, like, we need to go to brockport now. And then i rushed here. At 4 00 in the morning . 4 00 in the morning. And got here, saw the police cars. You didnt know at this point what had happened still . I didnt know exactly who it was. Reporter hundreds of miles away, a frantic mother waited, desperate for answers. But when those answers came, they would be unbearable. And they were coming soon from the killer himself. Coming up two frantic phone calls from a mother. He said she was breathing and then she stopped. And her son. Whats going on there, bud . I did something. Sorry about the holdup, folks. We have some congestion on the runway and im being told itll be another 15, maybe 20 minutes, and we will have you on your way. Runway models on the runway . Surprising. Whats not surprising . How much money evan saved by switching to geico. I would not wear that lace. Hmm, i dont know . Fifteen minutes could save you fifteen percent or more. Latches onto youry finger so hard, its like shes saying i love you. Thats why aveenos oat formula is designed for your babys sensitive skin. Aveeno®. 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And until you got there and started to put the pieces together, you didnt know. Reporter as he drove to the campus, investigator peglow reviewed the facts as he knew them, one young woman was dead, another was missing. What had been reported was that there was a young lady still alive and that needed help, right then that was, that was my priority in my mind on the way out there. Were you thinking that clayton had taken alex and had hurt her but she was still alive . Or that yeah. Someone else may be involved in the whole thing . At that point, i was thinking that she was just with clayton and he had hurt her. So youre thinking we have to find her immediately. Yes. Reporter but five counties away, a drama was unfolding that would break open this case. About 3 00 a. M. , an operator at the Oneida CountyEmergency Center got a call from a profoundly troubled dad. Yes, my name is scott whittemore, and my son, clayton, just called me and told me he killed somebody. Reporter it was a stunning statement even for a 911 dispatcher in the early hours of a saturday morning. But the dad didnt know much. Okay, where did this happen . I dont know. Where is he right now . I dont know. Reporter the father reported that his son was in a bad way. Hes talking about killing himself too. I dont know whats going on for them to not, except that he got in trouble. Reporter the divorced dad admitted that he was out of the loop about family matters. Now he was doing his best to stave off a tragedy. Do you know if he has any weapons . I dont know. He did ask me for one i have. I have a permit for a pistol he asked me for one. And he asked you for your pistol . Yes. He doesnt have it. And did he say what he wanted to do with it . Kill himself. Reporter the dispatcher asked scott to call his son back to find out more. Minutes later, the father was back on the line. Hey, scott, whats up . He has a girlfriend in brockport. His mom thinks hes probably on his way home from brockport. Reporter the 911 dispatcher got Clayton Whittemores mother on the line. Hi, sandi . Yes . Were trying to find your son. You think he was out visiting his girlfriend at Suny Brockport . Well, hes in canada right now. Well, hes not in canada. Hes not . No. At least his cell phone isnt in canada. If you were just talking to him on his cell phone, hes not in canada. Yeah, okay. Okay just take a couple deep breaths and, and try to, were going to try to find him so we can get him some help. Reporter the dispatcher got the name alex kogurt from the stressed out mom. Slightly wrong but it was enough. Seconds later, he was on the phone to the campus cops in brockport, and now, finally, the pieces of the story began fitting together. We got a call from a father about an hour ago that said his son called him. He stated that he killed somebody. Okay, okay. We pinged his phone and the sons name is Clayton Whittemore. Okay. And apparently hes out there with his girlfriend, an alex kogurt at your college. Yeah, thats who were looking for. Oh, youre looking for him, as well, huh . Yeah we actually had him earlier on an open container at midnight. Yeah, hows the, is the girl okay . I mean were just, were kind of concerned on whats going on. No, well the, the uh, we dont know where this alex kogut is. Okay. We cant locate her, but her roommate is a doa. Reporter thats the theory the campus cops were acting on, that the roommate was dead and alex was with clayton somewhere. But then, new information from claytons mom. Clayton had just called his sister and told her a frightening story about alex. And she said Something Like he said she was breathing and then she stopped. And he said the girlfriend stopped breathing . Yeah. Reporter claytons mother was beside herself. Did you get a hold of the college out there . Yeah theyre looking for him. We dont know what the hecks going on, so everybodys out looking to see if they can find them and make sure theyre okay. Reporter and then once more that morning the call line lit up at the 911 center in Oneida County. This time it was the call everyone was waiting for, Clayton Whittemore was on the line. Whats going on there, bud . I just, i did something. Reporter it was 3 44 00 a. M. The horror of what had happened in room 108 would soon be revealed. Coming up who had Clayton Whittemore killed . I didnt know how. I didnt know who. I didnt know anything. I just know she was gone. When dateline continues. Hey allergy muddlers are you one sneeze away from being voted out of the carpool . Try zyrtec® its starts working hard at hour one and works twice as hard when you take it again the next day. Stick with zyrtec® and muddle no more®. Does your makeup remover every kissproof,ff . Cryproof, stayproof look . Neutrogena® makeup remover does. It erases 99 of your most stubborn makeup with one towelette. Need any more proof than that . Neutrogena. Reporter Clayton Whittemore was at a rest stop on the new york state thruway when he called 911 with a stunning admission. Im turning myself in. I just, i did something that i cant take back and just got to turn myself in. Reporter it was almost 4 00 a. M. A frantic hunt that had pulled in multiple police agencies, emergency dispatchers, college officials, and two sets of anguished parents was almost over. There were two officers, two new York State Troopers who, you know, were patrolling the thruway that night. Reporter Sandra Doorley is the District Attorney of Monroe County in western new york. They were called to respond right to that dewitt road service area, not knowing what to expect. At that point, it was one dead on the Brockport College campus. And perhaps another missing. And clayton was there waiting . He was. He walked over and said, im turning myself in. They noticed, you know, bloody on his hands. Reporter within seconds, 21yearold Clayton Whittemore was cuffed and in custody. Now for his car. What could it tell them . They wanted to check the trunk. They didnt know if there was a body in the trunk. Because at that point, they still hadnt determined, you know, who it was actually on the dorm room floor of room 108. Reporter that was about to change. The cops back in brockport, who initially thought the victim might be alex koguts roommate, had learned the roommate was staying elsewhere that night. But where . They started an urgent search. Until they spoke to her, they couldnt be certain of the victims identity because of the hair color. Investigator steven peglow. The girl lying on the floor had very dark, almost black colored hair. And when you saw the photos that alex had put up in her dorm room of her and clayton, she had much lighter hair. The roommate had darker hair. Reporter investigators knocked on students doors, questioning them. Then a nugget buried in a conversation. They learned that alex had recently dyed her hair brown. They had what they needed to i. D. Their victim. Now they wanted to hear from just one more person, alexs roommate. When she did call in, finally, they learned shed been staying in another dorm room. We had her come to us, so that we could speak with her, then we were positive. Reporter positive that the girl on the dorm room floor was alex kogut. Bubbly, happy, lovely alex. Only 18 years old. Best buddy Samantha Turner, who had rushed back to College Early that morning, was devastated. I just, i broke down. And i knew at that point my life was changed. And you, you just knew what had happened. I just without anyone even i just knew. Telling you . Uhhuh. I didnt know how. I didnt know who. I didnt know anything. I just know she was gone. And i could never see her again. Reporter Sandra Whitney and her daughter paige are Family Friends of the koguts. Paige, remember, was a student at brockport too. Her roommate woke her up around 7 00 that morning. And she said, we have to go. Were all meeting together. Something happened. Paige called me. And she said, something happened to alex. I said, alex what . She said, oh, it was a terrible accident. And i said, well, is she okay . And she said, no. I said, is she in the hospital . And she said, no, mom shes not. And i said, has she died . And she said, yes. So, i was shocked, and all i could think was, what couldve happened to alex in her dorm room . Reporter the new York State Police were asking Clayton Whittemore that very same question, that very morning. Were there problems with your relation, you guys, i mean, your relationship or no, we were good. Reporter clayton put the pieces together for the police about what happened that night, and it began with the fact that his relationship with alex wasnt so good after all. The couple had dinner. Then the party. Clayton said he and alex drank moderately. But at the party, he got annoyed with her, said he felt disrespected. When id say anything to her, you know, shed, like, raise her voice or something. But if anybody else said anything to her, shed be all smiley and giggly. Reporter as they walked back from the party, clayton got that open container ticket. So i was already aggravated and it aggravated me more. Reporter clayton, remember, walked to the other side of the street to cool off. And then alex posted that final cryptic tweet, shouldve known. Well never really know what that meant, but what do you think it meant . Should have known that, you know what, maybe we werent meant to be together. Maybe we should break up. Reporter at 12 17 am, alex swiped into her dorm. She and clayton entered her room. Clayton said they were fighting about cheating. Old stuff he called it. What was she saying . Shes like, shes like, i saw a picture on your phone, way back, you know, november of last year or something. Yeah. And, you know, itll be a picture of my, my sister, for gods sake. Reporter then, he told the cops, she got physical. She started pushing me and pushing me and pushing me. She kept doing it, and was she saying anything when she was pushing you . The same stuff, you know. Reporter but the investigator pointed out clayton was a strong guy. Alex was tiny. You didnt feel threatened by alex tonight, it was more than that, right . I dont even know what it was. Dont know how to explain it . I dont know if it was my temper, or just her hitting me in general, or pushing me and stuff. But youre not hurt, right . No. She didnt hurt you at all, right . No. Reporter he told the cops he asked her to stop. But, he said, she wouldnt. And when he offered to leave, he said, she told him to stay. And then this. All of a sudden, i just snapped. Mmhmm. I hit her back. Whered you hit her back . Threw her up against the wall. Reporter the attack that followed was savage. Unthinkable. In a tiny dorm room, surrounded by sleeping students, Clayton Whittemore beat his girlfriend to death. Reporter investigator peglow has seen plenty of homicide scenes. But never one like this. There was a few of us in the room. And people were like, okay, well i have blood on this. Okay, i have blood on this. And gave you an idea of the rage that had gone on in that room. Reporter peglow, who has studied the interview video, says theres one thing he cant forget. Clayton told police that near the end, he realized alexs breathing had become labored, that the girl he said he loved, was dying. You know it was like watching an animal suffering. Okay. And die. Yup. You know . Thats why i did the other stuff that i did. Because, you know, someone you love, im not going to watch them sit there and suffer. Yep, okay. Thats why i did it. So, you see her suffering, and you think shes going to die . Is that right . Yeah, i didnt even think, getting help. Reporter didnt get help. Didnt call an ambulance. Didnt occur to him. Instead, he hit her until she died. To put her out of her misery he said. Mustve seemed almost impossible, how could she be murdered . Exactly. Disbelief, shock. Its not real, its not real. That doesnt happen. You dont go away to college and suffer that. You just dont. Reporter Clayton Whittemore was charged with seconddegree murder. He pleaded not guilty because Clayton Whittemore had an explanation, and his attorneys would reveal it at trial. Coming up could anything explain such violence . It happened my entire life. Yeah, and you said you saw a lot of it, huh . I saw it all. Reporter the verdict, when once upon a time a little girl learned how to read. Her mighty parents kept the adventure going by reading her books that were beyond her skill level. Her mind and her imagination grew happily ever after. Reporter it wasnt until the spring of 2014, almost two years after alex kogut died, that Clayton Whittemore went on trial. Although he told the cops he beat his girlfriend to death, he entered a plea of not guilty to seconddegree murder. Prosecutors had a powerful case against him and they knew it. The gruesome images in room 108, the mountain of incriminating evidence. Even his words. Yeah, i didnt even think getting help. Reporter he was a ticking time bomb, prosecutors argued, a killer years in the making. How does this young man go from star athlete, popular, college student, to what some would call a monster . You know, our theory that night was that his anger was just building, building and perhaps fueled by alcohol. Reporter prosecutors tried to show that Clayton Whittemore had already established a pattern of violence. They called exgirlfriend melinda graniela to testify about one scary episode. We were fighting in a parking lot and he had choked me. And he kind of held on for a few seconds. I thought that he might not stop. But eventually, he did. And i locked him out of his car to cool down, and he did. And it kind of blew over. But that one was serious. Yeah, it was scary. Reporter Hunter Fernandez was also called to the stand. Hunter had played hockey on that college prep team in florida with clayton. Hunter, too, had a scary experience. It happened after clayton drank a half dozen beers. The one time hunter says, that he saw his teammate drink. He walks in the kitchen. Then he grabs a knife and he raises it above his head, he looks like he was possessed. He just took a step towards us. And our host mom sees whats happening and shes like, clayton, put the knife down. Reporter Defense Attorneys didnt dispute that Clayton Whittemore killed alex kogut. Didnt even try. And they didnt dispute that his anger was years in the making. But, they argued, this wasnt a case of murder. Their client was guilty of the lesser charge of manslaughter. Why . They said he was under the influence of extreme emotional disturbance when he killed alex kogut because Clayton Whittemore was a victim himself. You know im turning myself in for what i did. Okay. The man who called you is the man who should turn himself in. Reporter thats clayton talking to the 911 dispatcher, hours after the murder. Hes talking about his dad, telling the dispatcher his father had abused him and his family for years. It happened my entire life. Yeah. So you said you saw a lot of it, huh . I saw it all. I watched my brother get beat with a baseball bat by my own father. I watched my own father break my sisters nose, throw my own mother down to the ground. And beat her. I watched him try to shove a remote controller down the throats of all his children, for fingerprints on his car. Reporter the cops in the Interview Room asked him how he felt about his dad now. Do you and your dad have a relationship now . Not really. My family, not like people im really close to. Growing up with my dad, one man i despised. Your dad . Reporter in the minutes before he was arrested, clayton wrote a bizarre apology to alex and the koguts. Sorry to the family and you he texted. Nothing will ever fix or undo what i did. I became my father. In court, claytons sister took the stand and supported her brothers story. Their father, scott whittemore, did not respond to datelines calls. Theres no record of complaints against him. But a defense expert, a psychiatrist, testified scott admitted that as a former marine he may have been rough. Because of that abuse, the expert concluded that clayton was suffering that extreme emotional disturbance and snapped in the dorm room. The prosecution begged to differ. Its just sad and tragic. And you know what, we never discounted or denied his past. But that doesnt excuse what he did. Reporter three weeks after the trial began, the case went to the jury. The verdict was swift. Guilty of seconddegree murder. I just felt this overwhelming sense of relief, that the truth came out, and that there was, there was finally a verdict. It was the right verdict. Reporter alexs mom did not attend the trial but followed it closely and tweeted. Becky kogut, after the verdict, tweeted, justice for my beautiful baby. Did you talk to her . Oh, yeah. About the verdict . Uhhuh. And what did she say . It was, it was a private conversation between two moms. There were tears, of course. It doesnt bring back alex. It doesnt. Reporter Clayton Whittemore was sentenced to 25 years to life. Now, among those who know the story of alex koguts life and death, there is a new awareness about the vulnerability and challenges of young love. Especially because, prosecutors say, there was evidence to show clayton had a history of threatening alex. He left angry voicemails on her phone. Assistant District Attorney meredith vacca. There were almost 30 voicemails that she saved from him. They were all of that aggressive, controlling nature, is what we argued to the court to seek admissibility of them at trial. Reporter the voicemails were not admitted in court. But prosecutors read an excerpt for dateline, editing out the expletives. Ill kill you next time i see you. Youre a slut and a skank. So dont call me. Im sick, im sick of you. And i left a lot of words out. When you add in those expletives, it is really hard to hear . It was. These were voicemails that really were scary. Reporter those close to alex and her family say they never knew about the voicemails. Never knew there was a problem. They say there were no red flags about Clayton Whittemore. Thats why its out of the blue. Never saw that coming. Nothing. Totally, totally, caught me off guard. Reporter perhaps, for parents, there is a lesson to be learned ask questions, know whats happening, even if there are no warning signs. Even if they might be not wanting to talk about it, you know, ask those questions. Reporter after alex died, Sandra Whitney and her family started the Purple Pinkie Charitable Foundation to campaign against dating violence. Purple symbolizes the fight against domestic violence. It was also alex koguts favorite color. Sandra came up with the idea as she comforted alexs former teammates. And i said, so paint your pinkies purple, and this is for alex. You have more strength in your Little Finger than the worst thing that can come at you. Reporter two years later, there were still purple ribbons in alex koguts hometown. Still friends tending a College Memorial to honor students who have died, at a college that has itself had to heal. A college that has since opened a center to raise awareness about dating violence. And there are still those, like Paige Whitney, who will never let the memory of a graceful, joyous, young spirit fade away. For the rest of my life, whenever i see purple i will think of her. Whenever i hear a story of any type of domestic violence, i will think of her. And i will not stop telling her story. Thats all for now. Im lester holt. Thanks for joining us. And ancient land to reaffirm the unbreakable bond between the United States and the state of israel. President trump greets the israeli leadership as he kicks off the second leg of an all important middle east trip. I didnt remember selection begins today in the bill cosby Sexual Assault trial. Highways and heavy rain took out power lines that claim the life of a 14yearold boy. A frightening scene caught on camera as a sea lion snatches a small girl into the water. Is this the next Winning Ticket for the presidency of the United States . Early today starts right now. Good to be w