Investigating Chuck News Today : Breaking News, Live Updates & Top Stories | Vimarsana

>> she was a college student found on a lonely road in texas. >> we figured she had been sexually assaulted and dumped here. >> tough questions for her boyfriend. >> where was i the night before? what had i been doing? when had i last seen her? >> i really thought he could be our killer. >> but while police try to prove it, another attack. >> he has got me by the throat and he's shaking me and he's yellinh at me, telling me not to say a word. >> you're a prisoner in his apartment? >> yes. >> even on forsman they felt what do we have on our hands. >> there is growing danger because th...

>> but while police try to prove it, another attack. >> he has got me by the throat and he's shaking me and he's yeg at me, telling me not to say a word. >> you're a prisoner in his apartment? >> yes. >> a college campus gripped by fear. a growing list of suspects. a growing list of victims, too. welcome to dateline. a killer was loose on the college texas town, leaving parents terrified. with a shocking discovery of jimmy hart's body, investigators were desperately trying to piece together the clues. was that young woman connected to her killer or did police have an active predator ...

>> didn't show up. in the next town over, detective kenny elliot continued to work the jamie hart murder case. he'd spent the last year casting a wide net for possible suspects. you took dna from 70 people? >> i think 77. mainly people that were being booked into jail for violent crimes. anyone that was in the area that just didn't want to talk. we took dna from everybody that would give it practically. >> but he also had never taken his eye off her boyfriend, chuck cruz. there was just something that was bothering you about chuck cruz. >> there was a lot bothering me about chuck cruz. >> so t...

Months since kristen had been assaulted. her attacker had failed to show up in court and seemed to have just disappeared. >> didn't show up. >> didn't show up. >> in the next town over, detective kenny elliott continued to work the jamie hart murder case. he had spent the last year casting a wide net for possible suspects. >> you took dna from 70 people? >> i think 77. mainly people that were being booked into jail for violent crimes anyone that was in the area that didn't want to talk. >> he also had never taken his eye off her boyfriend, chuck cruz. >> there was just something that was bothe...

Something that was bothering you about chuck cruz? >> there was a lot bothering me about chuck cruz. >> so the brazos county sheriffs office kept investigating chuck -- even communicated with the da about possibly convening a grand jury. chuck and his lawyer spoke to the detective on many occasions. and the detective continued to think chuck's behavior was suspicious. and he still seemed nervous. >> reporter: did you ever think that maybe the reason that chuck cruz was acting this way was that you guys were coming down pretty hard on him and he's lost his girlfriend. i mean, is this a way to a...