then joe campbell's story changed. ened, joe quoted tim as saying oh, you're armed? now he claims tim pointed a gun right at him. >> shoot him first. >> certainly the statement shoot first or cut the locks, he is trying to show that tim newman verbally told him that he was going to shoot him and before that there was nothing. >> and about the angle of the shot suggesting the first shot was a shot in the back? no, no, said joe. didn't happen. not long after they sent joe home again, and wondered what was the truth and what wasn't. they reaco >> in the end we needed shooting reconstructionists, reconstruct the shooting at the scene. >> but the reconstruction would have to wait for one of those only in montana reasons. >> right after tim newman was shot, there was a big snowstorm and the crime scene had been under snow the whole winter, we had to wait until may to get him up to the crime scene to do his work. >> so once again it was string time in montana. and the answer, pure and mindless as the first tiny blossom rose up