greg butler: john diamond had actually borrowed the gun from him. when the murder occurred, he had-- john diamond had possession of it. keith morrison: detectives were now convinced that diamond not only had access to a gun, but maybe even the actual murder weapon. did he still have it? well, apparently not. because just a short time after cops went to the home of diamond's army buddy, asking about that gun, diamond made a phone call to fort bragg and reported that his car, which he claimed to have left in the base parking lot, had been broken into, and one of the things stolen from it was a 9-millimeter handgun. vince pastillo: when we got there, the passenger door had already been opened, and there was a pile of glass sitting next to the rocker panel on the passenger side. but if you look on the inside, there was very little glass. what did that tell you? he had the door open when he broke the window, and then tried to make it look like it was broken in. keith morrison: a bogus break-in? military police sure thought so. john diamond was arrested f