Page 6 - Prosecutor Grace News Today : Breaking News, Live Updates & Top Stories | Vimarsana

>> do you recall how many times you hit him? >> four, five. >> and when you were doing that, what were you thinking >> i'm just thinking how in the [ bleep ] that i get in this situation. you know, i was scared for my life >> reporter: and then gavin then got out of the mercedes, said creech and there was something in his hand >> it was like a ten to twelve-inch stainless steel thing that at the time i thought was a knife. we fell in the ground, and we went at it for about ten or fifteen seconds exchanging punches. >> at some point did you get that weapon? >> i kept punching him until he let g...

Black mercedes >> we felt that the vehicle was still out there somewhere. >> reporter: so find the car, and maybe find out what happened to gavin and, nine months after gavin vanished, they finally got the break they were looking for. >> i said, "i'm here to talk to you about your daughter. and he started crying. and he said, she saw everything. >> reporter: coming up she was very nervous and startled >> you think you can be shocked but you can be >> when "dateline" continues but as long as you're with jessica, there can never be anything between us. listen cassie, there's no need to cry. be...

18-years-old back then, asked us not to use her last name not after she found herself in the middle of a homicide investigation when police came across her while doing surveillance on john creech. lauren used to work in the pro shop of the powerhouse gym in chatsworth, california and that's where she first met creech >> he was beautiful. he was tall and he was muscular. and a lot of women especially wanted to date him, a lot of men wanted to be him >> reporter: lauren fell for him. he told her he was separated from his wife chandy, but that didn't stop chandy from calling lauren >> she texted ...

Hills sheriff station to report gavin missing. and waited and waited. days later, gavin's family went on nbc4 in los angeles to plead for help >> i'm not going to stop until i find him so please help me find him. >> if you guys want to each pick up one of these streets. now i'm in panic mode, we've got to do something. >> what did that feel like being in that spot >> oh, it was surreal. >> reporter: the smith family put together a $20,000 reward for any information leading to gavin's whereabouts. nothing turned up. >> and i would think with every hour that went by, it would be more and more di...

>> he clearly stopped using. he was feeling healthier than he felt in years. >> reporter: but when detectives john o'brien and ty labbe learned about gavin's addiction, they had to consider a raft of new possibilities. >> he disappeared. maybe he overdosed we didn't exactly have any of those answers. >> driving all over the valley, we would have moments in the car of where we looked at each other and said, "i think this is a suicide. and then an hour later, we'd interview somebody and something would happen and we'd go, "i think this is a murder." and our feelings and our gut instincts are goi...