. >> i think the golf club is a, as alfred hitchcock used to say, it's the mcguffin, okay?vice to tie it to steve democker, the golfer, the elitist. >> sure. >> the rich guy who is pissed off about. >> fine. but isn't there scientific evidence to say that's a golf club head that hit it? >> no. i don't agree with any of that. and nobody, not a single person could say that that was a golf club. they all said it could have been a golf club. but they also said it could have been other weapon. >> reporter: the defense argued detectives should have looked into other suspects too. one person in particular. jim knapp. the man who rented carol's guest house and arrived at the scene almost immediately after deputies. >> why was he a potential suspect in your view? >> well, it's like the guy who lights the fire that comes back to watch it burn. and that was our feeling about mr. knapp. because it wasn't a little bit of evidence that we had on mr. knapp. it was a mountain of evidence on him. >> reporter: knapp, said the defense attorneys, was in serious financial trouble and cooked up