>> it's like a scene out of the shauna: it's like a scene out of a movie. there was tape. there were cops with dogs searching movie, there was tape, cops with dogs touching around the crime scene. i just ran towards the cops and

started yelling, shelley shelley. >> a young art student murdered. >> she said, your daughter as been found in blood. and then the phone went dead. >> this was brutal and sad. >> the clever killer leaves a blank canvas that had no fingerprints, no dna. >> yeah. >> police zero in on three fellow students. the dead girls friend. >> trying to corner in the hallways at school, texting her on the phone, -- >> her boyfriend -- >> he had daggers, knives, sorts, who collects that kind of stuff? >> and her roommate. >> it felt like a leopard with. you >> absolutely. >> you could have been that -- >> she sure could have. >> soon, the dark picture begins to develop. >> look at this. >> that's what the whole thing happened. >> a portrait of the artist says a young killer. >> you notice the people in

there. >> once there was a quiet little girl in a quiet little town who like to draw. she to the butterflies that floated by her around a plea, texas, like the country, but they pronounce it italy. >> she drew a butterfly in our class when she was an elementary school, and all the little girls are like, that's a good, draw me one, draw me one. >> her name was samantha michelle nance. but everyone calls her shelley. and her mother cynthia loves to tell the story about her. >> everybody was so impressed with her but if i. she thought, i am allowed to be an artist. i think i can do this. so she started owning her artistic talent from that

point. she will draw anything and everything. she just loved to draw and draw and draw and draw. >> shelley was different from the other girls at school and at home, said her dad, sam. >> the other two girls, we could not keep in the house. but she did not want to go out of the house. she was perfectly happy to be at home on the weekends, stay a long time by herself. >> which, as you can imagine, did not make her very popular in the intensity social world of growing up. but it did not seem to matter much to shelley. >> what was she said in the air book? >> they had her right a little block for all the seniors, and she wrote, you laugh at me because i am different. i have to you because i am not the same. >> she's not like you to? >> no. >> these are her sisters, shawn and rachel. >> -- >> shelley, however, did not --

not ever. >> she was artistic, smart, non athletic, did not like athletics. that was more me in that department. just very shy. >> she is one that would sit in her room, read a book, play a video game. >> never had to worry about her. >> she was not into like tattoos, forcing or alcohol, sex, for sure. she avoided majority of what could have gotten her into trouble, and i was so happy with that. >> then when shelley was a senior at the italy i school, the teacher suggested that she enter a art contest sponsored by the our institute of dallas. >> and she is like, well, i am not that good. the art teacher said, no, i think you are, shelley. >> and she won. >> that same piece of our, they put into the national competition, and won her fourth place there. she got a total of $13,000 to a

scholarship towards the our institute of dallas. >> that's quite remarkable. so this is a major talent. >> and she was so excited about getting to go. >> the art institute of dallas is an urban school. everything about it and around it was as different as could be from little italy, 45 miles, a whole world away. but here finally was a world in which really felt like she belonged. >> just being around people that had her same objectives and their same on sets, and a boys, who never paid much attention to her in high school noticed her in college, because she knew her stuff. they were quite impressive that she was so knowledgeable in her field already. it caught a lot of their eyes. >> maybe, they were each other's kind of people. >> yeah, yeah. >> they worried about her, of course. this is the first foundationally has ever been

away from home. >> this is what she wanted to do, and she was not homesick. i said, okay. >> it was only an hours drive away, if she needed them. her first year was just fine, so in september 2009, when shelley was in year two with a circle of friends, even a boyfriend, her parents felt free to set off on their first real adventure alone, far from home, just the two odom, a road trip to yellowstone national park, more than 1400 miles from italy. >> cynthia was texting her on the phone, we're leaving texas now, and she said to each one of the girls, rachel and shauna responded almost immediately, no word from shelley. we thought, well, he is probably still asleep, though she did not have class today. so, that was not really unusual at the time. it was not until later in the

evening that we thought something might be wrong, because we have not heard from her that was not like her at. >> what was that like? >> it was torture. >> she had a premonition that something was wrong, but i -- what would happen to shelley? she never goes anywhere. she stays in her room. the only goes out when she has to. so, the next morning, when she still had not called, that's when we both got worried. >> i think the next morning, cynthia called the art institute. >> we found out that shelley was and class, and actually, they would not go check on her. they said they can't leave the office a lot to go check on a class and a half or call us. >> that i recall. >> then, they phoned shelley sister, shauna. >> i told them, stop worrying about her, she's 20 years old, she does not want to talk to her mom. i really did not think anything bad would happen to her, so i brushed it off.

>> so, they kept driving. by now, they are almost 1000 miles from dallas. that's when the school called back. >> when they finally sent somebody to the classroom, and she was not there, i was ready to turn around right there, because i knew something was wrong. >> then relief, someone from the school ran into shell's remain, ashley. >> she said, i just saw her last night. she was fun. >> but relief did not last. shelley's parents were about to discover her youngest daughter was far from fine. dateline returns after the break. after the break. ...unless grandpa's got flavor. dayumm! crabfest is here for a limited time. welcome to fun dining. trelegy for copd. ♪birds flyin' high, you know how i feel.♪ ♪breeze driftin' on by...♪

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death, heart attack, stroke, and tears in the stomach or intestines occurred. people 50 and older with at least one heart disease risk factor have higher risks. don't take if allergic to rinvoq, as serious reactions can occur. tell your doctor if you are or may become pregnant. disrupt the itch and rash of eczema. talk to your doctor about rinvoq. learn how abbvie can help you save. with a majority of my patience with sensitivity, i see irritated gums and weak enamel. sensodyne sensitivity gum & enamel relieves sensitivity, helps restore gum health, and rehardens enamel. i'm a big advocate of recommending things that i know work. >> ashley olvera had assured ashley olvera had assured school officials i'm a big advocate of her roommate, shelley, was fine, but shelley's sculptures that philly was fun, michelle's parents could not shake the feeling the something was horribly wrong. >> when ashley went home, she found her, and she was not all

right. >> no, she was not. the school called shelley's parents yet again. >> we are on the highway and about 10 to 20 miles from our destination and the mountains, and the phone reception was really at. >> so through the static, she could not tell, was she hearing or imagining words. >> she said, her daughter as been found in blood. and then the phone went dead. i lost reception at that point. >> her daughter was found and blood? >> i was asking, what does it mean. >> i knew what it meant, i just did not want to accept it. the only thing that made sense was a sexual assault, that's all i can think of, because she did not have any money or enemies. >> what is that like in the moments, so far away and you get that call? >> panic, i wanted him to stop

the truck. we were in the middle of the freeway, there was no way to cross. i wanted them to cross immediately, and get back, we needed to get back. we did not do anything, we should have been there. we should have been there. >> it kind of feels like year guts were kicked out from the inside. that is about the best description, it hurts your whole soul. >> as they race back towards texas, cynthia's cell finally returned. she called the police and got the confirmation that shelley was that. so, again, she phoned shauna. >> i had to tell her little sister that she was dead, on the phone. i needed somebody to be there to be in my place, to be there

the police needed to ask questions and stuff. so i called her, and i had to devastate her that way over the phone, but she had to know. >> i just hit the floor. i could not stand up or do anything, could not talk, just shocked. >> if you have any idea what happened? >> no, i got to the scene for us because i live close to her, so it was like a scene out at the movie. there was tape, they had everything taped off. there were cops with dogs searching the garbage can. there were cops on golf carts, searching around the crime scene. i just heard the cops shouting shelly, shelly. they did not let her in, but they had questions. they wanted to know, like, if i knew her boyfriend, and finding her remains, and who could have done something like this to her? >> meanwhile, you're flying down the highway as fast as you

can go? >> yeah. >> we were trying to get back. we were still trying to put it together in our minds what happened, who took our little girl from us, and at that time, you don't know what to do. >> what happened to this talented, what is, innocent young woman that was taken too soon? as to who did it and why? >> for the case to have the twist and turns that this wanted was something to i would not have dreamed in 100 years, and i am seasoned. i've seen a lot of things. >> okay. >> but not like this. >> coming up -- could the smallest clue be the biggest break? >> a 80 petito sliver of plastic about this long. >> when dateline continues. n dateline continues being me. keep being you... and ask your healthcare provider about the number one

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>> she just never got into any sam: she just never got into any trouble at all, trouble at all, so that is what makes this so much harder. because nothing like this should have happened to her. >> especially to her. >> especially to her. >> what was done to shelley nance, just 20 years ago was viciously ugly. that it was murder was all too obvious. the girl had been attacked, and

she probably lay asleep in bed. her color stabbed her again and again and again. >> over 40 times, in the back. she was stabbed in her back. she was stabbed in her neck, behind her head, this was brutal and savage. >> overkill, set detective paul -- this would be critically apparent that detective has deep roots in old-fashioned police work. he's -- his that was a cop, his wife and sister were law enforcement. it's over now, he retired 24 spot, he cannot get over the sight that greeted him at shelley's bedroom. >> this was tragic. this was horrific. >> that site stays with the. >> yes, very much so. >> murder, as the detective knew from his law experience, take something from the investigators view, makes it

hard sometimes. but when he learned about the victim, about her decent family, her quiet, modest life, her innocence, the murder of shelley nance him personally. >> she's done nothing wrong, not in the wrong place at the wrong time, not associated with somebody that should not have been so shooting with. the stars and of just write that somebody, an animal, decided to take her life. >> it sounds like akot to you, this one? >> well, you know, i got two daughters, and yeah, it's hard. >> shelley died here in the false, a large housing complex where the art institute arranged for some of the students to live. it seems like a perfectly reasonable fifth place, quite safe, but we stopped by to take some pictures once on the afternoon. but -- >> i would not let my daughter live there. >> no? >> absolutely not. >> dallas, like any big

american city, suffers from its share of crime. at the falls -- >> you go there during the daytime, it looks very night. but at a time, it's a totally different story. >> and it isn't 20 year old girl industry at the time at the night, you're worried about? her >> no weight with my daughter walk at that neighborhood thursday night. the nuances did not know any better. >> little italy after all presents few issues that a person could account like in the middle of dallas. anyway, on that september day 20 detective arrived at the false, he had no idea what sort of scene confronted him there. all he knew was that a female had been murdered. >> i am ready to go in different directions and as to make some exceptions. when i walk in that door and make a left-hand turn and see that girl there, then i can eliminate things relatively quickly. she still had her panties on, which generally -- >> means no sexual assault? >> exactly right, it erases the

sexual assault part of it. she has a t-shirt on, so i am not thinking that it is a rape. i am not thinking that. when i see the stab wounds in the back, then i start thinking personal. this is probably going to be somebody that you knew. i checked the windows, i checked the door, you want to look for forced entry. i did not see evidence of that. >> no, somebody she knew, and from the looks of, the wild repeated ferocious stepping, somebody consumed by and uncontrollable rage. aside from all the blood, they found no useful fingerprints and eventually, no dna to have the mother. whoever did this had managed to erase any sign of who he or she was, except, there was one tiny bit of, well, was evidence? what was it? they found it under shelley's left wrist. >> a little bitty tiny sliver

of plastic about this long and probably, a quarter of an inch and with. >> any idea what it was when you found it? >> it was not confirmed until after the completion of the autopsy, of what the material actually was. it was latex. >> they kind of material that a pathologist would be rather familiar with doing the autopsies? >> it appeared to be a fragment of a disposable glove. of course, they tested it to be sure that it did not come from the medical examiner or any of the officers at the crime scene. and it did not. it must have been left by the otherwise careful killer. but who would want to hurt her? and so horribly? the first person that detective talked to was shelley's roommate, ashley overall, who found shelley dead in her bed. that is how actually became

possible suspect number one. >> she was not sexually assaulted, shelley. that was my initial opinion, it was later confirmed. why couldn't a woman do this? >> sure. >> there are a lot of things that have been between aides that we don't know about, so there could everyone. >> sure. >> what happened if anything, between these roommates? it's a thing that the detective is determined to find out, even if he had to get rough. coming up -- he become convinced that something just was not right between those two girls. >> what else can you say? it's weird. it's not natural, it's not normal. >> when dateline continues. when dateline continues for years, i thought my t.e.d. was beyond help... but then i asked my doctor about tepezza. (vo) tepezza is the only medicine that treats t.e.d. at the source

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our top stories -- violence open across france as the funeral was held for the -- his killing sparked unrest

throughout the country. more than 900 people were arrested. and, in the netherlands, the dutch king apologized for his country's role in slavery. he asked for forgiveness in a historic speech that was greeted by cheers during an event that commemorating the 150th anniversary of the abolition of slavery. now back to dateline. ck to dateline >> i kept thinking, i was and it was a really bad dream, and this wasn't really happening. asleep, it was a really bad dream. and that this wasn't really happening. i couldn't imagine like that ever happening. >> -- complete shock. >> the first stage was denial. that shelley -- that innocent wisp of a sister had been murdered was almost beyond comprehension. but, maybe worse, quite possibly they were not going to know who did it. the first and most obvious mystery jumped out at the experienced eye of -- shelley had been did a while.

>> we could tell by looking at her that she had not been there longer than 24 hours. >> but, this was curious. her roommate was in the apartment for much of that 24-hour period and claims she saw and heard nothing -- like shelley, roommate actually olvera was also -- taft, texas, not far from -- her interest in the -- animation. she was shy, like shelley, but more willing to be social. they took her in for questioning. >> what sort of state which? ian >> she was upset. she was crying. but it was -- it was not anything -- i don't know. i don't think i would have had the same reaction had my roommate had that kind of death. >> a little less of a reaction --

>> yet, more like her puppy got run over than her roommate got killed. >> detective ellzey, highly attuned to the subtle reactions of his interviewees will still seeing in his head the image of that intensely personal murder scene. could actually have been so -- one of the things that can make a roommate situation between two girls deadly is if there is a romantic attachment. >> -- >> did you go down that path with her? >> no, i went down two directions. i went down the part that maybe they were seeing the same guy. i also -- because, you have to explore the fact that maybe they were romantically involved, shelley and ashley -- because the degree of injury that that poor girl suffered, as i stated, it's personal, which is a lot of vented rage. >> it's something like a lover would do -- >> absolutely. yes, sir. >> that's correct. >> -- >> -- she sure could have. without a doubt. >> --

discover the murder after the school center home to check on shelley. she said she knocked on sheila's closed bedroom door, got no response, and then entered the room. >> i saw her feet, and she wasn't moving. so, i turned on the light and said, shelly, are you okay? she wasn't moving. so i -- shook her in her bed. >> when she covered up? >> originally, the blanket was on her. >> -- >> yes, sir. >> -- you pull the cover off of her? >> i saw the blood. and i touched her arm. but she was cold. and i -- >> as you know is he seen that, what happened? >> i alternate. i don't know how many times. >> i actually felt the detective was all just an innocent mistake and she told the -- institute she had seen shelley alive and well the night before. and in fact, shelley was dead

by then, which did not make sense to detective ilsley anything more than ended the next thing actually said, that was not unusual for several days to go by without seeing shelley at all. >> she said that schiller was a very private person, that she just would put her headphones on go into her own world -- and start drawing. >> and close the door from the bathroom? is that -- >> she had two doors, shelley did. one that would allow entry into the living room, through the bedroom. and then one from in her bedroom to the other end of the bathroom. >> and actually claim that door was closed. >> yes. >> you wouldn't buy that. >> no. >> your first reaction when she said she hadn't checked on her -- >> when else can i say? it's weird. it's not natural. it's not normal. if i have a roommate in such a small apartment, if i don't see them, i am definitely going to hear them. i'm certainly going to communicate to them.

and with two girls, you would think the bathroom would be tied up all the time. >> did you suggest the possibility existed that the two girls didn't like each other? sometimes girls can be pretty -- >> you know -- actually told me that they did not have arguments. but they had disagreements. and i asked her what she meant by this agreement and she said, well, just girl stuff. not fights. not -- you know, we didn't haiti cha they're. it was just like we kind of lived in two different worlds. strange. >> it's hard to know whether to buy that or not. >> exactly. there's many twists and turns. >> something else -- something potentially huge -- police found spots of blood in the bathroom the girls shared. a bathroom actually used after shelley was murdered. so, did she just not see the blood? or did she leave it there herself? >> -- detective ellzey used an old-fashioned strategy --

exactly -- the evidence -- didn't exactly tell the truth. in an effort to get actually to cough up the truth herself -- >> he's got to dig in people sometimes to really see where they are coming from. >> -- their story. >> absolutely. >> -- blood right here on the sink. i don't see how you can miss that. i don't see how you can miss this big deal of blood right here on the bathtub. i don't see how you can miss it all on the trash can. how do you do that? >> i didn't see the trash can. but i remember seeing the -- >> when did you see that? >> when i was leaving for school. >> when? what day? >> today. >> -- think to knock on the door? >> to say, hey, shell, you -- you need something? that's weird, man. when >> i know it is. i'm telling you everything i know.

i mean, shelley was my roommate. she was my friend. she is my friend. we went to school together. there's no reason why i would harm her. >> i really believe that something terrible happened between you and shelly that you are not telling me. >> the thing is, there was no forced entry. whoever killed shelley had a key. >> when i talked to actually i wasn't the nicest guy in the world. when i -- i dug into her pretty hard, especially when i found out there was no forced entry. >> actually had a key. >> i need to know what happened. -- explanation as to what happened. -- you are the only one that can tell you. >> i know, and i'm telling you the truth. >> actually, i don't believe you, honey. -- >> no, i did not. >> yeah, he did. i just need to know why you did it. >> i did not kill her. >> yeah, you did. i can prove you did.

something -- >> i didn't or hurt her. >> -- nobody else could have did it. nobody else could have done it. -- >> -- >> this looks terrible, terrible, terrible for you. >> no, a detective ellzey did not go easy on sheila's roommate. but there was a murder to solve. and the first day of an investigation was crucial. it's time to bring in the boyfriend. coming up -- >> -- shelley had been stabbed to death and -- find at her boyfriend's place. >> with a collection he had. he had throwing stars. he had -- he had daggers, he had knives. he had swords. who collects that kind of stuff? when dateline continues. ine continues. and last for weeks. it can make your workday feel impossible. the virus that causes shingles is likely already inside of you. 50 years or older? ask your doctor about shingles. [ music playing ]

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♪♪ voltaren. the joy of movement. ♪♪ >> to say that murder victims to say that murder victim, shelley nance, voltaren. the joy of movement. had a boyfriend was, perhaps, an overstatement, at least shelley nance had a boyfriend was perhaps overstated, at least as the term is technically used in the 24 century. his name was it in shock. he was a classmate at the art institute, 20 years old, with shelley. he lived in the dallas suburb, where he grew up with his mom and grandmother. like shelley, he seemed reserved, at least most people. but in class with close friends, he was energetic. shelley and nathan had been going out, if you could call it, for a couple of months. >> i did not even find out

until the similar, i think july and he doesn't mind that she had a boyfriend. she said, mom, i got a boyfriend. like, you do? yeah, and that would probably not like him too much, because he's got a lip piercing and some tattoos. >> but, she told her mom, they had not even kissed yet. >> she, as far as i know, had only held his hand like once. he is not even that way. i sheltered her. >> sister shawn it was the only one in the family that meant a ton. >> she introduced me to him as her friend, not her boyfriend. >> what was he like? >> he was just nice, goofy kid. they were joking and making jokes and laughing and having a good time. you could tell that she like him. she would blush and kind of giggle. >> you had not seen that from her before? >> not like that, no. >> it was a fellow art student, chris philips, who saw them as

a couple. >> she was in exactly the same vein as nathan. they were both artists, love to draw, book kind of kept to themselves, they were pretty quiet. >> and then one terrible day, chris heard that a female art student had been killed somehow over at the false apartment complex. so said chris, he, nathan and a few others got in his car and headed over there, to figure out what happened. on the way, chris's cell phone rang. it was a friend named jeremy, who told them it was shelley who is that. >> i hear those words and look at nathan, it's one of those defining moments in your life, where it is like, what happens now? >> did you tell him yourself? >> i told jeremy to anything tell him. i handed him by phone, and you

kind of see the sudden shift of emotion going from worried to absolute -- i don't think i will ever forget the way that he looked at me, as he listened to germany talk to him. his eyes were so broken. >> in some kind of denial, at least according to chris, they knocked at shelly's apartment door, no answer. so they hurried to jeremy's place, also at the false, to see if we knew anything more. >> and the police showed up, and i grabbed him by the arm and income author. i started talking to him. >> not gently? >> no, no. they're talking to him, got out the car, and i did not see him for the rest of the day. >> in a murder so up close and personal, so vicious, boyfriend nathan naturally became a person of interest immediately. when officers brought into the dallas police headquarters, the

detective was more than ready to ask nathan some very personal and specific questions about his relationship with chilly. >> are you a virgin? >> yeah. >> initially a version, to your knowledge? y'all ever discuss sexual intercourse? never? she's been in your budget before with the light off. what did you all do? >> we were sitting there playing video games. >> you never tried anything sexual with her? has she ever tried anything sexual with you? did you consider? >> no, never. >> you never kissed or? she's a girl from two months, and he never kissed or? why? it's weird. >> it was my first girlfriend. >> nathan never heard of a college romantic relationship like that. the question was, did he believe it? >> how many 19 and 20-year-old

people proclaim to have a boyfriend or girlfriend and not custom? >> aiken said he had not seen or spoken initially for several days before the murder. he said he spent much of the week back home with his mom and grandmother. is he telling the truth? standard procedure, the detective checked out nathan's body for scratches. >> all right, turn around. okay, turn back around again. how do you get the scripts right here, them scratches? >> oh, i usually scratch myself. >> again, could he believe that? >> we asked him? can we go to your apartment? describe your apartment, do you have knives or sorts, do you have this, and he answered, some weird stuff. >> the funny thing is, he did. >> and what a collection he had. he had throwing stars, had daggers, had knives, had sorts.

who collects that kind of stuff? >> then, detectives learned something interesting from shelley's mom, something shelley at told her mom not long before she was killed. >> she said, mom, i am thinking about breaking up with nathan. i just don't have the feelings for him to i think patient. i don't see the relationship going anywhere. >> and a furious young man struck back at the woman who rejected him, a not uncommon motive for murder as the detective knew very well. he confronted nathan. >> shelley told her mom that she told you that y'all was through. >> no. >> yeah. >> no, she didn't. >> her mom at the, sun. i talked to her mama. don't call me a dam buyer. i just talked to her mama. her mama, shelley told her mom that y'all didn't have nothing in common, and that it was over, it was through. he never said that?

you sound math. you're a dam psychopath. are you like cuckoo in la la land? does that not register to you? >> nothing makes sense. i'm just -- i'm just waiting to wake up. >> that's right. you're waiting to wake up. now, what did you do with a knife? >> i wasn't there. >> nathan, you're a dam liar. >> i didn't do anything with a knife. >> yeah, you did. >> the detective made no apology for the personal tone of the interrogation. there was more to learn about this closed off young man, questions about knives could have an extra special meaning. coming up -- someone offers a new and unsettling motive of 18 and shell's relationship. >> nathan was stopping chilly everywhere she goes. >> when dateline continues. n dateline continues

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the murder of shelley nance set off a wave of deep anxiety and stay on top of the market. set off a wave of deep anxiety around the apartment complex called the false. this is where some of the art students live, and now we're one of them was murdered. which the killer out there somewhere? or worse, even among them? if this could happen to a sweet, quiet home body like shelley, surely none of them was safe. >> i think a lot of people, immediately after hearing about this, kind of went into this panic mode. and it's like, okay, if it was her, is it going to be me next? >> in fact, in short order, the art institute of dallas moved students out -- and into a more secure apartment in the -- they didn't know what police were thinking. but this was no random crime, that it was personal, an inside

job, so to speak. they were looking at people close to shelley, someone who had a key, like a boyfriend or a roommate, someone who knew she would be asleep and then surprised her, attacked her with a knife. >> she was small in statue. -- it wouldn't take much. >> but to? >> as detective tough as detective ellzey was with boyfriend nathan, he was not much farther along than when he started, and how he spent some time with a few of nathan's friends, like his roommate, daniel william. >> you are older than the other kids. and -- >> yes, i was 26 years old. >> -- he too was a little different. for one thing, he had been born in indonesia, and struggled with some wheel culture shocks when it's family moved to america. still, he put on a brave face and served in the navy, and

then signed up to study interactive media at the art institute. if anybody knew what nathan was up to, it would be daniel. and hold in the student department was almost like a den mother. >> i became a big brother to him. i was like, do your homework, take him to school, they come up from school, and things like that. >> yes, you were. -- you are making his lunches, cleaning up after him, you were driving him to school. >> yes. i was like a father to him, yes. >> but the way it was described later was more like you were a mother to him. >> yes, that was his own words. >> daniel worried about nathan, he said, surly red flags -- toward his first girlfriend to his. nathan, he said, seemed obsessed with shelley, maybe dangerously. >> our started to notice that nathan had missed his classes. and finally, i talked to

shelley's remade, actually. and what she told me shocked me. because, from her own words, nathan was actually stalking shelley everywhere she goes. >> and after shelley was murdered, he said he saw scratches on athens body, which, in fact, the police had noticed too. and then daniel added something very interesting. he picked up nathan from school on thursday night. that's the day of the killing. it was more than 12 hours before shelley's body was discovered, he said. and nathan behaved like someone who fell. but guilty? >> -- kind of like a bad mood or something. -- right before i went to sleep, i heard him crying in his room. >> what was he crying for? do you know? -- approach him -- >> i knocked on his door. i asked him, are you okay? he's like, yeah. -- because i heard you crying.

he was like, no. but his face was red because -- when people cry, their faces are red. >> did he tell you why he was crying? >> i don't know if he is or not. because -- >> what he looks upset -- and you had lived with this guy for so long that, you would know, obviously, if something was bothering him. >> which is what their friend chris phillips thought too. daniel knew -- in fact, said chris, daniel kept a helpful eye out for a lot of people at the school. >> he was very bright, friendly, eager to help anyone out. he was that guy that's a lot of people knew. and he would walk into, say, the student lounge, and everybody would be like, hey, it's daniel! >> a nice guy? a nice guy who is telling detective elsie he was troubled about nathan. and that, when the detective dug a little deeper among other people who knew nathan, it

began to hear different take on the kid -- >> some people would describe him as a little bit itchy scrawny kid, a little introverted who just lived and breathed his artwork. other people would say, the guy had a temper. >> actually said she heard the same thing. >> one of my friends would say -- he's like, i would never want to see nathan angry. -- have you ever seen him play a video game? he kind of just pops if he doesn't get something. >> then the police searched nathan's bedroom and found his collection of knives, which was not the only thing nathan liked to collect. he also had a very unusual caution, which anyone who searched social media could readily see. >> just google his name at the time. and his my stay's my space came up and he just as an engine. he clearly has an obsession with ninjas. >> and knives? >> and i've, yeah.

former reporter scott goldstein cover the story for the dallas morning news. >> -- other pieces of key evidence that pointed to him even more so. >> perhaps most startling was a remarkable piece of evidence that police discovered in daniel and nathan's apartment. >> and paying attention to what was found in the bathroom. >> and your bathroom? >> no, not my bathroom. nathan's bathroom. >> a plastic baggy with blood on it in nathan's bathroom. >> the changes this whole case. and when he's asked about that piece of evidence, he locks up. now he is not that little boy i have been talking to. now, he is a man. and he understands his situation. and he says, i need a lawyer. >> just like that? >> absolutely. >> -- >> he locked up tight. he sure did. >> also, remember, whoever had killed shelley must have had a key to her apartment. there was no sign whatever of forced entry. -- and shelley told her mother she

was thinking of breaking up with nathan. did she tell him? did he use one of his many knives to get even? is that why the bloody baggy was in his bedroom? >> a kid, being a boyfriend, has got a motive. he could have very well did it. he could have very well had a key. you could have very well slipped in there, undetected, and been in there -- you know, she could have invited for him in for all we know. -- and then left. >> it was not looking good for nathan, not at all. >> coming up -- the focus widens to include another student, someone shelley had once expressed concerns about. >> trying to corner her in the hallways at school, texting her on the phone, saying, we need to talk. really weird-ing me out -- >> when dateline continues. continues ...unless grandpa's got flavor. dayumm! crabfest is here for a limited time.

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back to -- texas -- held a funeral at the families church, and it seemed like the whole town was there, along with many of shelley's fellow students from the art institute of dallas. >> it was the most horrible thing we have ever been through. the day after the funeral, i was ready to kill somebody. >> the institute held a memorial too, and it was their shelley's parents met nathan for the first time. >> he came up and wanted to shake my hand and i couldn't do it. i didn't want to look at him. i didn't want to touch him. because, if he had something to do with killing my shelley, i didn't want to pretend that it was okay. >> shelley nance was just 20 when she was attacked and killed in her off-campus apartment here in dallas. tiny, quiet, sweet and defenseless, the last person anyone would want dead.

everyone said that. but clearly, someone did. the police already had ashley on their list of suspects. >> i have interviewed her. i am satisfied that i can set her to the side for the time being. she is not going anywhere. >> she's not eliminated? >> absolutely not. no, no, no. >> but for the moment, detectives were concentrating a lot of attention on nathan, but carefully. it they were not done, not yet. got to take it slow. >> we tried to look at it from a distance. you can't let your personal emotions get involved. you can't allow tunnel vision to take over. your job is to investigate, look at the evidence, and then go with the evidence leads you. >> detectives were still canvassing fellow students and teachers and school administrators, anybody could would help them nail down nathan's movements on thursday morning, the time of the murder. and again, if anybody knew, it would be daniel who, after all, watched over nathan, drove him

around, and looked after him. but, it turned out, nathan was at home in suburban dallas, the night before the murder. his mother drove him to school that thursday morning. he said he was doing homework at a computer lab at the time of the murder. but was he? >> and he was in school from wartime to wartime? >> i don't know. >> what time did you pick him up thursday? >> thursday, i picked him up -- 10:00. >> -- routine questioning. >> from starbucks, i went -- that's when i texted actually, if she wants to go get lunch. from there -- i went to white rock lake and -- because i was supposed to take a picture. but i forgot to bring my camera for an assignment. in from their, i thought --

i went to my friends place. >> and you forgot your camera? so you went to whose house? >> jessica howard. >> what time did you get there. >> around 12:30-ish -- >> no apparent reason not to believe him. but did daniel know something more than he was saying? detectives talk to chris phillips to. chris was daniels roommate before eight and moved in. and it was great at first, said chris. but daniel ended up doing more of the house tours and resentments began to fester about things like trash not taken out and so on. daniel turned out to be something of a neat freak and needy, may be. >> i am a college guy. so, i want to interact with women and bring them to our apartment and stuff. and he wasn't very excited about that. he didn't really want me to bring people to the apartment

that he did not know. >> people? for women? >> well -- i guess it was both. >> did you understand what this was all about? >> at first, i did not. but, over time -- let's see, what's a good word for it? kind of needy. you know? towards me. like, he needed me to hang out with him more than anybody else. >> he wanted to be central in your existence? >> right, yeah. >> did you understand when you were first hanging out with him -- that he was gay? >> no, i didn't know. but, as time went on, he eventually came out to me. i essentially just started figure he was, anyways. and it's -- i was absolutely cool with it. i had no problem. >> but did he make a request? did he want to have a romantic relationship with you? >> no he, never made any kind of requests like that towards

me. >> -- from shelley, who told her some stories about what happened when -- >> trying to corner her in the hallways at school, texting her on the phone, trying to call her and saying, we need to talk. why does he need to talk to me about? he said, he's really -- >> and she kept refusing to -- >> she didn't want to know what it was he wanted. she said, she ended up asking nathan, and had come to find out that he was just insulted that they were not inviting him to go out with them on dates, which i thought was really weird to begin with too. >> she found this out? >> yeah, that's what he told her. -- in considerate of his feelings. >> what did you think about that? did she have an opinion of his -- on a date with him. she is like, if we -- over at his apartment, and we would be playing video games or

something in athens bedroom. he would open the door and stand there in the doorway, watching them. she says, it's just weird. >> that is pretty weird. >> yeah, it just got to the point where they would go to her apartment instead. >> strange. but didn't have anything to do with shelley's murder? maybe. or maybe not. but, just maybe there were three murder suspects now. coming up -- >> which of them had a key to shelley's place? the roommate, of course. but, according to her, one of the others have access -- >> to know if he made a copy of it? >> no, but now -- it's a possibility that -- it's the only time that i remember ever -- >> when dateline continues. line continues helps restore gum health, and rehardens enamel. i'm a big advocate of recommending things that i know work.

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keith morrison: a terrible helplessness, a literal ton. angry and impotent, piled onto the grief piled on to the grief that laid

-- nance family -- autumn of 2000. i'm >> just kind of scary that somebody could be out there that's capable of doing these type of things. and who is it? the answer wouldn't bring her back, of course. nothing was going to be the way it was ever again. but finding out who did it -- now, that was indeed intense. the dallas police department was zeroing in on the boyfriend, nathan. and so, detectives decided to interview danielle a second time. after, all he lived with nathan. maybe daniel could tell them more. and, then something odd happened. daniel changed his own story a little. remember the story of where he was -- this time, he added something. -- >> starbucks -- where did you go? >> to white rock lake. >> okay. specifically, white rock, lake,

where -- >> okay. you can't leave that out. so, you go straight from starbucks to walmart? how long -- what did you do at walmart? >> i got hair dye. >> okay. >> soap. >> and gloves to color my hair. >> -- walmart? he did not reveal any stop at walmart during his first interview. and then he -- he story again, just slightly. after the walmart and the trip to white rock lake, he said, he went to visit that friend just got, discovered she wasn't home -- but this time he added one little detail -- where his friend lived. >> you get back in your car. where do you go. >> i went to the falls to go to my friends house, jessica howard. >> the false apartment complex. that is where shelley was killed. daniel didn't mention the false the first time he was

interrogated. >> why did you leave that part out? >> because always mugged over there, sir. >> mugged? and yet he somehow failed to mention that during his first long session of questioning? >> coincidentally -- the same complex, he's approached by a black male with a knife, who rubs him. >> the rubber took $40 in cash and his backpack, said daniel. >> you didn't tell me a dam thing about getting robbed. because that's [bleep] -- he didn't get robbed. the robbery never happened. that's [bleep] -- >> clearly, detective ellzey didn't believe him for a minute. and, in fact, no evidence of the claimed mugging ever turned up. but it was that little crumb of truth inside a suspected lie that caught detective ellzey's attention. daniels admission that he went to the false falls --

>> -- that's exactly what you did. >> i didn't do anything! [crying] >> -- that girl. i want to know why you did it. >> i didn't do -- [crying] -- >> you stabbed her and you killed her. >> i did not do -- >> yes, you absolutely did. >> all i want to hear is the truth. >> [crying] -- >> he showed a photo of shelley, dead, covered in blood, in front of daniel. >> -- there, that is your handiwork. that's what she looked like when you finished with her. look at her. >> don't cover your face. look at her. that's what you did to her. that's what you did to her.

that's what mom and dad had to look at. what do you think about that? >> look at this. look at it! think about the last words she said. think about the last thing you heard that say -- that girl say that she took -- her last breath. you think about it. how can you live with yourself? take your dam hand away from your eyes. and look at me. and tell me how you treat a girl like that. tell me how you do that. >> i didn't do it, sir. >> however, then detectives had heard that daniel was not fond of shelley, because he felt she was a bad influence on eight and studies, which was untrue, by the way. but that's what daniel claimed.

and then his friend suggested what might be the real reason. daniel dislike shelley because he was jealous, didn't like nathan spending time with a girl. detective ellzey turned up the heat even more. >> how can you despise a human being that bad. she never did anything to you. how could you hate that girl so much? >> i didn't. >> you hate her enough to kill her? over a dude? >> i didn't. >> you hate her that much? that she took nathan away from you that much? that she calls you so much problems in your personal relationship that the only answer was to kill her. that's it? >> two days after that interview, it was once again actually's turn to talk. and she also revealed something she had not said before. remember, it was quite apparent that, whoever killed shelley must have had a key to her apartment. there was no sign of forced

entry. well, now actually told the detectives that, a month before the murder, daniel jabalero to her core, which -- neither here nor there, except the key to her apartment was attached to a car key. >> you know if he made a copy of it? >> no, but now that -- it's a possibility that -- it's the only time i remember ever handing my keys to somebody. because i always have my keys. >> daniel may or may not have copied the key. but as much as the detectives wanted to make an arrest, they had to be sure they have the right person or persons. a lot of times you've got one shot at it. >> and if you don't do it right, that killer could walk for life. that's the last thing i want to do. >> coming up -- finally, detectives believe they have zeroed in on their killer. >> when all these facts come together, there is no other suspect. >> when dateline continues -- ne continues -

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your -- humidity making it feel like over 100. forecasters say a heat dome is hovering over the region. and longtime weather reporter frank field has died. field began his meteorology will meteorological career at in wnbc the late 1950s. he was known for his reporting on science and medicine as well, as well as his frequent guest spots on the tonight show with johnny carson. field with 100 years old. now back to dateline. old now back to da>> a few weeks afr of art student shelley nance, the police were waiting for the results of a test that would explain it. the dna on that bloody baggy found in athens bathroom. >> if it comes back to shelley,

we've got a golden ticket. we know who committed -- well we know one of two people committed this murder. it's not by coincidence that this girl ends up dead and her blood ends up in their apartment in the bathroom. daniel killed her? nathan killed her? or they both killed her. hope for the investigators, dread for our student chris phillips. -- >> i live with both of them, and to think that i was living with someone that would do this -- >> and then, finally, the lab results came in. >> dna can from that that blood had come from shelley. and then -- then you have to sit back, scratch your head, and say, well, i wonder if both these guys did it? and then if you go with that theory, what is a motive? robbery? no. rape? no.

i mean, how would you get these two people on the same page to kill this young girl? >> there was one other possibility. did daniel frame nathan by planting that bag in his bathroom? after all, he lived in the same apartment. so, detectives went about the painstaking work of verifying every moment in the lives of those two young men on the day of the murder. and then -- >> nathan, was a hard, hard suspect. but after we did our timelines, and we interviewed people, and we checked his phone and we checked surveillance videos and witnesses, he had an alibi. he was -- when we believe shelley was killed. >> but daniel? daniel, remember, had given the police a shifting alibi. didn't tell them in his first interview that he stopped by a walmart store buying hair dye. but as detectives thought about it, that --

now get raised more questions. >> this is a young kid not old enough to have to cover whatever the -- i mean, his hair looked fine to me. i thought it a little odd. >> did he actually go to walmart at all that morning? -- they subpoenaed this walmart surveillance video. and sure enough, there was daniel, in the walmart when he said he was. but why hair dye? could it be he really wanted the protective gloves that are generally included in a hair dye kit? >> gloves is important. because there is evidence at the scene where a glove turned up. >> not a whole glove, of course. but a tiny piece of material that if you do have been torn from a rubber glove. so, they requested a copy of daniels walmart receipt. and, what do you know? the type of hair dye he bought came with a pair of gloves, which did not match the snippet of blue material found at the

crime scene. but daniel, it turned out, bought something else that morning at the walmart, a whole box of disposable gloves in blue nitro. with that the same material as that tiny glove fragment found under shelley's wrist? why, yes it was. >> we are able to scientifically connect that little sliver of glove found at the scene of being as the same manufacturer and consistency of the glove that walmart sold on the day that daniel purchase those gloves. >> that was huge. we'll evidence, linking daniel to the crime scene. >> when all these facts come together there is no other suspect, and the reason that shelley was killed is because she stood in the way of a romantic rendezvous that he so desperately wanted with nathan. >> on november 4th, 2009, eight weeks after shelby's murder, they arrested daniel.

the rest was, for shelly's family, a double-edged -- until then, the police had not told them that shelley had been stabbed 42 times. >> oh, my god. i am was passed out. -- and i just thought, oh, my god. >> -- mitchell got the case then and right away could see the problem. this was a circumstantial case in which the accused would likely say, the other guy did it. >> especially in a case like this -- >> so, he sent out his investigator hoyt hoffman to -- >> you have to make sure that no stone is left unturned. >> and then, they strategized. >> we spent, i would say, half or more of our time actually working it the other way saying, okay, well, let's say that the other person did it. >> nathan?

>> nathan. or less i actually did it. and let's look at the evidence. and, there's that bear fruit. or is that something where you look at them and it just doesn't work, because we want to make sure we got the right person. >> could you have prosecuted nathan? >> absolutely. absolutely. i mean, it would have been an easy case. >> really? >> absolutely. come in and say he did it, he is the boyfriend -- anytime you have a stabbing, you mediately look to whoever that person's romantically involved with. >> so we called in nathan yet again. >> multiple time. >> actually? too >> yes. >> they finally arrived to the same conclusion the police did that neither ashli nor nathan killed shelley, had to beat daniel. daniel alone. but making a case in court, it might not be so easy. this is one of those cases where circumstances are kind,

you had no fingerprints, you had no dna, you had no bloody clothes on the suspect you had no incriminating statements, just some weird stuff. >> yes. >> tough case. >> tough case. circumstantial is the correct word. >> question was, could they make the case, or would a jury believe they reach the wrong conclusion. coming up -- motive, it's been tricky to pin down in this case. but in court, prosecutors present jurors with a theory of everything. >> that's why this whole thing happened. >> when dateline continues. hen dateline continues and last for weeks. it can make your workday feel impossible. the virus that causes shingles is likely already inside of you. 50 years or older? ask your doctor about shingles. [ music playing ] when we first arrived at st. jude, it was just claire and i. she was still recovering from her brain surgery.

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♪ ♪ ♪♪ voltaren. the joy of movement. ♪♪ >> it was at the trial when keith morrison: it was at the trial voltaren. the joy of movement. when sam and cynthia nance finally came face salmon cynthia nance finally came face to face with the man accused of killing their youngest daughter. or more accurately, their eyes

a stare into the back of daniel williams hair, it was november 2011. >> i wanted him to look at me, and he wouldn't do it. that told me right there he had to have done it, he is ashamed to look at me in the face. >> chris phillips saw daniel in court to, when chris testified for the state. >> very cool under pressure, something about seeing him that day was very shocking for me. that look, i gave him a nod like icu and he nods back and there was this tension. >> he covered the trial, he could tell right away this could be unusual. >> the opening line i think for the prosecutors was there are two people on the face of the air who could've done this, they said upfront that it is about these two men. >> nathan, and daniel. a boyfriend incapable of murder, the prosecutor would say. and that boy's roommate, driven

by jealousy. >> we couldn't just say here's the physical evidence, found the circumstantial evidence. and he did it. we had to deangelo the evidence that we had that showed that nathan didn't do it. we knew that was going to be the defense. >> and, ask for daniel -- >> i told them an opening statement it is bizarre as it is brutal. i wanted him to know that they would be hearing a case where their first reaction was going to be how could this happen? this is crazy. i didn't want to be in the middle of a case and then trying to figure out what is going on, why are we looking at this guy, not that guy. >> then the prosecutor presented his theory. a story of how it went down. surely, unknown night owl had been appalled wednesday night into thursday night on her computer until 6 am, when she went to sleep. ashley left for school. then daniel enter the apartment, possibly with ashley ski the

one he had secretly copied when he borrowed her car in ring a month before. once inside the apartment he stabbed shelley to death, he cleaned up any evidence of his presence. he got out of there. but he could not erase all the evidence. like for example, his text messages that morning. particularly his tax to actually before the murder. he can be seen sending some of these tax at the walmart on this surveillance video. >> timing was starting after the 10:00 hour on september 10th, and it was one minute, the next minute, the next minute, the next minute, then there was a pause, pause for an hour and something. he was asking her in those text messages if she wanted to go to lunch with him. >> he was hammer texting her, it was one of those situations where i have no doubt in my mind he was texting her to see whether or not she was going to leave the classroom. she told him no, she was in class, she wasn't interested. the fact that he kept asking

just shows that he wanted to make sure he could get away with what he was about to do. >> and she wasn't home, also. >> right. that was key, you have to make sure there was nobody in the apartment. >> absolutely. >> and, daniel stopped texting her for almost two hours, and then resumed again. remember, in his first interview with the police daniel lied about where he was the morning of the murder, and then in a second interview he told them he went to the false that morning, that it was true the prosecutor said. but when daniel claimed he went there to meet another female classmate for a photo assignment, that was a lie. so the prosecutor. >> we talk to her and she said that there was no reason for them to have been there, he didn't contact her to do any such project. and so, the other ally though that was indicted that he then told detectives about going straight home, when the detectives looked at the cell phone records of his location after we believe he committed

the offense, he went to an entirely different location -- >> didn't go home? >> he did not go home. he went 30 minutes north of town, stayed up there for some period of time before coming back. >> getting rid of his bloody clothing and the murder weapon and other evidence, the prosecutor figured. none of which police was able to find though they searched thoroughly through the area. >> in this case we had someone who committed this crime and then did a fantastic job of cleaning up, and not leaving evidence. after the fact, told multiple lies. >> in fact the prosecutor say daniel was so good at cleaning up, it would be reasonable to assume he was framing nathan when he left that one piece of obvious evidence, the bloody baggy in nathan's bathroom. then there was daniels complicated relationship with nathan. and by extension shelley. >> we will hear the stories about him getting upset because

he didn't get her offered to go to breakfast with people, or he wasn't invited to go to the movies with nathan and his girlfriend. it was just a consistent pervasive feeling that daniel would tell anybody who was willing to listen about how he was slighted by not being involved. and, part of the chain of events to is the fact that he wasn't invited by nathan and shelly to go to some anime festival here in dallas, the weekend before this ended up happening. >> so, nathan went with shirley, and left him at home. >> absolutely. >> it was one weird triangle. the prosecution argued that daniel felt left out, the game increasingly jealous, and then angry. and then his anger turned to rage, actually. >> that's why this whole thing happened. i believe he had hit in his heart for. >> remember, in a court of law defendant is innocent until proven guilty.

and daniel -- >> my mother asked me if i killed shelley and i told her mama, i'm not the one who committed this, i'm not one who killed her. >> coming up -- >> daniels defense tries a single bold tactic, to cast suspicion on nathan and they have plenty of ammunition. >> what they had in their pocket was the boyfriend who we knew the girlfriend was thinking about breaking up with who happens to be obsessed with knives. >> what with the jury make of all of that? when dateline continues. eline continues. ♪ breeze driftin' on... ♪ [coughing] ♪ ...by, you know how i feel. ♪ if you're tired of staring down your copd,... ♪ it's a new dawn, ♪ ♪ it's a new day... ♪ ...stop settling. ♪ ...and i'm feelin' good. ♪ start a new day with trelegy. no once-daily copd medicine has the power to treat copd in as many ways as trelegy. with three medicines in one inhaler, trelegy makes breathing easier for a full 24 hours, improves lung function, and helps prevent future flare-ups.

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♪♪ voltaren. the joy of movement. ♪♪ when nature and science get together... pretty sweet things can happen. like our senokot laxative gummies. to relieve occasional constipation, senokot starts with the natural senna plant that science transforms into a yummy gummy! sweet! senokot laxative gummies. >> daniel william, as was his

keith morrison: daniel william, as was his right, sweet! declined to testify when he went on trial right declined to testify when he was on trial for killing shelley nance, he did not himself point at nathan and accused him of committing the murder. of course he didn't have to, his attorney did it for him. it was not a surprise to prosecutor julie mitchell. >> they said it could've been

nathan and could have been a random person. and that by the time states is done with its case you won't be able to know who did the crime, they just don't have evidence. it's a pretty good strategy. >> yes. >> it's the only strategy. this wasn't a self-defense case. and it was an insanity case. >> no. >> it had to be somebody else. >> make sense, again did he have blood, no, dna? no. >> what they had in their pocket, my star witness is the boyfriend who we knew the girlfriend was thinking about breaking up with who happened to be obsessed with knives -- >> and oh, by the way he is appearing online in a ninja costume for heaven sakes. >> when he was cross-examined by the defense they left out the picture with him with the mask on up on the screen. >> you worry a little bit, i would think? and that just happens to be how young women tend to die, they

get murdered by jealous boyfriend who don't want them to leave. >> absolutely. >> that is what he was going to do. >> absolutely. >> the defense attorney strategy was perfectly clear, point out that the state, whichd repeatedly. he certainly wanted to know more about the reason for the defense strategy, his opinion of the charges. but at daniels direction, his attorney declined a request for an interview. and in court, called with just one witness, no not daniel, daniel did not testify. the witness? was chilies mother, cynthia. >> at first they said since i was going to be called, that i couldn't sit in the courtroom during the whole trial. i'm sorry, i was going to raise a fit because i was going to be there, and the judge decided yes it would be okay. >> why call cynthia nance? you remember the conversation

and which shelley told her mother she was thinking of breaking up with nathan? that, said the defense gave nathan a motive. but certainly not daniel. cynthia was incensed by the questions she was asked. >> for them to call me and ask questions trying to make it sound like her conversation with me of wanting to break up with nathan would be the reason why nathan would go and kill her, you know, i didn't want them twisting my words, to make it sound like the things that i said reflective more on nathan unless on daniel. >> didn't work out for them or did it backfire? >> it didn't work out because shelley's mother also testified when she was cross-examined by the prosecution that as far as she knew shelley never had that conversation with nathan, so nathan -- >> he would've known? >> he would've known. so that kills the idea that that could've been motive if he

didn't even know that they were going to break up. >> still, one way or another, nathan may have felt he was on trial as much as daniel was. so, in their closing argument the prosecutors had to essentially act as nathan's defense attorneys. >> one of the prosecutors pointed at him and remarked this is basically a scared little boy who spent that we got home with his grandma cutting the cross off of his bread. >> i said he was yellow and mustard without the spice. >> he was a scrawny kid chile could've taken him in her sleep. >> but, with daniel william capable of so brutal murder? of someone he barely knew. other jurors would have to make up their minds without hearing a word from daniel. though, when we spoke with him, daniel had a great deal to say about the case against him. >> no, i'm not trying to accuse nathan of murder. i'm just trying to find out where was he. but i do have a suspect. >> coming up --

judge who was daniel talking about? someone the police never even looked at. he put the bag in the bathroom? >> no, i said he had access to my house. >> when dateline continues. hen dateline continues ♪ rsv is a contagious virus that usually causes mild symptoms but can cause more severe infections that may lead to hospitalizations... ...in adults 60 and older... ...and adults with certain underlying conditions, like copd, asthma, or congestive heart failure. talk to your doctor and visit cutshortrsv.com. >> daniel william on trial for

keith morrison: daniel william, on trial like copd, asthma, or congestive heart failure. for murdering shelley nance, has a complaint murdering shelley nance, has a complaint about the way the world is. though he didn't testify, he wanted us to know something about him, and his concern that people, young people especially, black courtesy. they are just too rude. like for example, the young people he lived with at the art institute of dallas. >> what i was trying to do is be courteous to the people that lived around me. >> that's a lot of discourtesy expressed by these kids. that's been a problem. >> you see that everywhere,

people don't have attitudes about respect and doing the right thing. >> managing courtesy. >> manners and kersey. >> that's what he was up against first with remit chris phillips and then with nathan, but just as it happened with chris, daniel went through and enamored stage first. >> one day, chris brought nathan home, and when at first i said wow, this kid is good-looking. >> daniel was gay, and was attracted at first. he admitted. you were infatuated. >> not anymore. >> not anymore few months into the relationship. >> no, i've never had no sexual relation whatever with him except being a platonic friend. >> did you ever tried to initiate a sexual relationship? >> no. not at all. >> you didn't hint at it? >> no. >> he like chris phillips said they saw something else going

on. i mean, essentially they were saying that you are obsessed with nathan, that he was becoming interested in shelley, it seemed to bother you according to those who saw you, it seemed to bother you a great deal. >> yes, he was stalking her. >> we'll, or he was actually hanging out with her a lot, they play video games together and didn't include you. >> true. >> didn't include you in places they want to see other people, they left you out, you are feeling left out by these two. >> yes, i did feel left out because i told nathan, you know, it is very rude that, you know, you didn't ask me if i wanted to do this or to do that with you. >> all those things they had done, and he is basically just shoveling you out of the door? >> yes, yes and i came to talk to him about it, i told him it was very rude and if not that i

felt left out, but it was ruud -- >> it's not -- it's normal that you felt left out, it wouldn't be human if you didn't feel left out. >> of course i felt left out, but after i talk to him before he goes out with shelley he would ask and i said no, don't worry about it. >> we asked daniel about something charlie told her mom, that daniel kept trying to corner her, speak to her alone, that it bothered her. his reply? he did approach shelley, but only out of concern for mason. >> then i would ask her is there something wrong because he is failing his classes. >> so you as his big brother, mother figure, whatever it was felt a responsibility for him and it was because of his obsession with shelley? >> i believe so. >> did she tell you to lay off? >> no. she actually thanked me for bringing up the issue and that's where i left it. >> of course, it was quite easy

for us to check his claims that nathan was failing his classes, was he? no. but, listen now to daniel central claim that for evidence of who killed shelley one need look no further than that plastic bag, stained with her blood and found in nathan's bathroom. daniel swore he didn't put it there. >> they are telling me that i'm obsessed with nathan, so therefore, i was the one who committed this crime, if that was true, why would i put it in there? >> once you realized it's either you or nathan, you better blame nathan. >> that's what you would think, right? for me to blame mason, but i didn't. i tuesday -- >> you just did. >> i'm not trying to accuse nathan of murder, i'm trying to find out where he was. but i do have a suspect, where was christopher phillips at this time? >> chris phillips? now that was a new one.

he put the bag in the bathroom? >> no i think he had access to my house. >> by the way chris phillips was never a suspect to the case, he was a witness for the state, but daniel was adamant that he, at least, was innocent. >> i'm not the one who killed that girl. i'm not the one who killed chilly. i have two younger sisters, sir. what if that happened to my sister's, what if that happened to my mom? i would kill myself before i hurt anybody else. i couldn't kill her. because, she reminds me of my younger sister, amanda. [crying] >> what if that happens to amanda or katie.

i would kill myself. >> but it happened to shelley, that's what happened to shelley. >> but i'm not the one who killed her. even if i have to go through this, i'm still telling you, i'm not the one who killed her because i can't. that would be like me killing my younger sisters. and i love them. >> what the jury have believed him, had he testified? we will never know. but without it, the verdict came back in just three hours. guilty of first degree murder. >> it was a very good thing, it's one of the cases that i'll never forget, only because of the brutality involved in it and at that time my daughter was exactly 20 years old. same age so, it struck close to

home. after the verdict shelley's mother approach nathan and apologize for ever suspecting him. >> i was grateful that he was nice to her. >> how did he take it? >> he didn't have a whole lot to say. he gave me a hug and said thank you. >> at daniels sentencing the state revealed a little more about his past. about the times he reacted to what he considered to be rude behavior. >> the defense attorney had told him he was a pastry chef in the navy, in his opening statement. that's all they knew. >> what were you able to tell them? >> we were able to say that while he was in the navy he had repeated times where someone would upset him and he would go to superior and let them know that he was contemplating hurting them. hurting them with knives, and hot oil. then we found out that once he was back at his house, he had gone into an argument with his brother and fiction -- and tore the place up, when i

hoped it would do was that he would tell the jurors you got it right. >> because it was texas it was also the jury's job to decide on a sentence. it took them less than an hour. he got life, no chance of parole for at least 30 years. >> i was like, what is happened? >> you thought you should've been found not guilty? >> yes. >> you expected to be? >> yes, because i'm not the one who killed her, how many times i have to tell you this? >> how did it feel inside? >> so crushing. >> live in texas is not the same anymore, of course, we felt shelley nance. her mother founded an art scholarship in her memory and did something very unusual for a woman her age in a place like italy, she got a tattoo of a butterfly, of course. >> i can look down and remember shelley, every time i see it. >> she and sam are deeply

religious people, their faith tells him to forgive. it is very hard. >> i haven't forgiven him for what he has done. that's a hard thing to do. i know he has, but if he could ever admit that he did it, then i might be able to forgive him. but i can't forgive him, i can't forget. >> how have you been able to forgive him? >> i know that everybody is not perfect. i don't know. to me, if i hold a grudge like that, it's gonna eat me up more than it will heat him up. i just had to let it go. put it in god's hands. let it go. i miss my daughter every day. not a day goes by that i don't think about her. that is for sure. i know i will see her again some day. it's what keeps me going. t keeps me going onal to so many people in aspen. >>