his name was lance kirkpatrick. ick set detectives straight. >> i honestly really think you're barking up the wrong tree. >> i had made the comment, "lance would have taken a bullet for kim. so you guys are wasting your time. fi -- talk to him. you'll understand. you'll know where i'm coming from after you meet him." >> reporter: lance, he added, not only wouldn't kill kim -- he couldn't. derrick said his friend had taken a new job just before her death. >> well, he's up in georgia, shrimping. >> reporter: out on a boat. >> yes. >> reporter: at sea. >> yes. miles away. >> reporter: but derrick did give detectives another name. and this young man had definitely been in the area that week -- in jacksonville and in trouble. >>> coming up. >> kim ever come onto you? >> no. i wish. >> a suspect who seemed infatuated with kim. >> have you ever had sex with her? >> no, i wish. >> a history with police. >> did it make you question him? he was just in jail. they line up by the thousands. each one suffering with a story that b