no sign of jessica inside. >> my worse fear she was burned in the car. >> early the next morning kyler youstrrested, he has pleaded not guilty to charges. >> jessica's lawyer begging him to speak out but you advise him not to. >> this is not advice to punish jessica's family kyler has not been charged with anything outside of burning this car a charge we plaed not guilty to and intend to fidelight. >> kyler youst is still in jail awaiting charges. in discovery hasting saying despite developments over the past week mr. youst remains with one count of knowingly burning a vehicle and continues there's too many unknown factors to charge him with further crimes. but were there disturbing signs in his past? >> the court documents show a escalation of violence in women's life. >> any time you have a violence in a relationship there's escalation. >> there was alleged that he choked and slapped and punched and threatened to kill me and my baby. it is what happened to his other exgirlfriend ten years ago most alarming. >> cara was 17 when she went missing zblx cara loved her friends and being around p

authorities now investigating a homicide and family hoping new clues will link back to kyler youst ah a troubled past. >> our fight begins now. we're not done. >> jessica was known for her easy laugh and playful spirit. >> we like to drive around and blair musimusic. >> the oldest of three girls 4 and 6-year-olds. >> i love you jessica. >> that's the last of the four of us. it shows our closeness. >> we spoke with jamie in january, her first extensive tv interview. >> i ask talk anything about her it's just the sentimental stuff like future, past, it's kind of -- yeah. sorry. jessica jessica's grandfather driving us on the route he believes she took that night, still searching for includes. >> jamie's pretty strong but eventually there's a time when jamie is -- it's going to hit her and hit her hard. >> thursday assessment 8th, jessica is at a party requewith friends. >> six to seven people sitting around, drinking beer, watching tv, goofing off. >> she reportedly leaves with kyler youst a long time friend of her boyfriend, he's a man with alleged history of abuse against women and j