. >> the firearm that was submitted to me was a russian-manufactured makarov semi-automatic pistol, chamberedo fire .380-caliber ammunition. >> shell casings from the crime scene and casings from the gun were examined with a comparison microscope. viewed side by side, the shell casings left no doubt the murder weapon was justin bullard's gun. >> the boots were mr. bullard's. the gun was mr. bullard's. the last phone call from the victim was to mr. bullard's apartment. >> but despite the overwhelming evidence, bullard not only denied he was the killer, he came up with the incredible tale that someone must have stolen all his things, committed the crime, then returned them. (dog) mmm, this beneful healthy weight is so good... i mean how can this be low- calorie? how is that even possible? an' i feel good... lean, strong... ...ah...you're gonna find out just how strong when we wrestle. look at you, you have no idea what's coming. come on... ...make your move. (vo) beneful healthy weight, a delicious, low-calorie meal your dog will love. with wholesome rice, real chicken, and accents of vegetable