lisa. >> prosecutors then turned juror's attention to kevin's behavior after lisa's murder. david struck was one of kevin's close friends. struck testified that kevin seemed desperate to visit sabrina in jail, just one day after the murder. >> he told me that he just wanted to let her know that he was still there for her. this was the person that had just killed his wife and i was shocked that he would want to have any sort of contact with her. >> according to karen, kevin's real reason for wanting to see sabrina was to keep her from talking to police. and telling them about kevin's involvement in the murder plot. >> the trip to the jail was certainly huge. >> as pleased as prosecutors were with their case so far, they knew it would stand or fall on how the jury responded to their next witness. >> you guys worried? >> i was worried. >> they listened.