maclennan had actually grabbed the gun before the shot was fired. of that contact with the hand, some of his blood then did blow back into the barrel of the rifle. >> when confronted with this evidence, matt molder admitted he was involved, but insisted jason maclennan was the killer. >> he tried to talk me into going, and killing him because he knew he'd be the prime suspect. but i couldn't do it. so i told him i wasn't going to have anything to do with it. and then he was ust like, okay, fine. and he took the gun from me and said just go wait in the car. >> matt said he heard the shots. jason came back to the car, returned the gun, and then he went home. >> how about the gun? did you do anything to the gun try to alter it? >> i stuck an allen wrench in the barrel. >> you stuck an allen wrench in it? >> well, 'cause he told me that pretty much if i want to save my -- i had to get -- to do something to the barrel. >> and matt knew something that hadn't been made public. four different types of .22 caliber bullets had been used. >> one of the things