the bar to call dorothy from a pay phone in the lobby. she said, she too went out to the lobby a short time later and chris davis wasn't there. he returned 20 minutes later. >> witness told us at this point that corporal davis was red-faced, appeared to be out of breath. he was no longer wearing a jacket that he was wearing earlier. >> so, where was chris's jacket? investigators saw it in the photos taken of the scene the night of dorothy's death, hanging on the doorknob of the couple's bedroom. >> i thought, oh, my god. look, here's the maroon jacket, but it's important. it's not thrown, it's not dropped. and a person who comes in, who finds their wife lying there, perhaps mortally wounded, is not going to take his jacket off and nice and neat hang it up on the doorknob.