Daniel Frame Nathan News Today : Breaking News, Live Updates & Top Stories | Vimarsana

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 tha...

Her friend, not her boyfriend. >> what was he like? >> he was just a nice, goofy kid. i mean, they were joking and making jokes and laughing and having a good time. and you could tell she liked him. she would blush and kinda giggle, and -- >> reporter: really? you hadn't seen that from her before? >> not like that, no. >> reporter: it was a fellow art student, chris phillips, who saw them as a couple. >> she was exactly in the same vein as nathan, you know. they were both artists. they both loved to draw. they both kind of kept to themselves. you know, they were pretty quiet. >> reporter: and ...

Which was not the only thing nathan liked to collect. he also kept a very unusual costume, which anybody who searched social media could readily see. >> just google his name at the time and his myspace page came up and he's dressed as a ninja. >> reporter: yeah. >> and he clearly has an obsession with ninjas. >> reporter: and knives. >> and knives, yeah. >> former reporter scott goldstein covered the case for the dallas morning news. >> as the investigation went on, there were some other pieces of key evidence that pointed to him even more so. perhaps the most startling was a remarkable piece ...

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 -- >> reporter: nathan wouldn't have known. >> he wouldn't have known. so that kinda kills the idea that that could have been motive if he didn't even know that they were gonna break up. >> reporter: 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. ...

He -- you know, he was -- he was that kinda -- he was that guy that a lot of people knew. and he would walk into, say, the student lounge, and other -- everybody would be like, "hey, it's daniel," you know. >> reporter: hmm, nice guy? >> yeah, very nice guy. >> a nice guy who was telling detective ellzey he was troubled about nathan. and then, when the detective dug a little deeper among other people who knew nathan, he began to hear a different take on the kid who was supposedly too shy to kiss his girlfriend. >> some people would describe him as a little bitty, scrawny kid, kind of introvert...