i've almost got him. >>> 18 months after lisa knoefel's murder, kevin knoefel's trial began. e charges? complicit and conspiracy to commit aggravated murder. kevin was also charged with sexual battery relating to sabrina. prosecutors karen cowall analyst sass nuroda argued sabrina would never have killed lisa had it not been for kevin. >> she was the perfect patsy. >> young, impressionable. >> idealist. >> and anxious to have a guy love her. >> yes. >> and so he manipulated her. >> yes. >> but this was no slam-dunk. kevin denied all charges. and prosecutors acknowledged their case was based prime airlinely on the word of sabrina, a young woman with plenty of reason to lie. >> this puts you in a difficult position it seems to me. i mean, are you defending the character of this cold-blooded murderer and the fact shah she commit this had murder is all on someone else. >> not necessarily on someone else but together with somebody else. she would never have done this by herself. >> withoutny direct proof of the alleged affair, prosecutors began by calling those who say they saw sig