for more than six months. he ran all the time. no shoes lasted more than six months. and he bought them a couple years earlier, is that right. yeah. the bicycle tire, that s the tire that s on 80% of all the mountain bikes in the u.s. it s the most common tire. so there s nothing very distinctive about that. they wanted to be able to tell the jury that it was a match. they were not allowed to do that because as the experts said, we have no idea if it s a match or not. something that has more or less. reporter: the defense called its own forensic pathologist to ask if the medical examiner was correct in his conclusion that the murder weapon was a golf club. with regards to saying, ah, specifically this weapon, i can t. i think the golf club is a, as alfred hitchcock used to say, it s the mcguffin, okay? it s the magic device 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
it s the magic device 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