keith morrison: ron elges was the detective who got the call. remember getting that call? yeah-- because i was sleeping. keith morrison: he woke up fast to a very big problem. the killing just didn't make sense. appearing like a ghost has done this-- no evidence, no weapon, everybody in the house says i don't know. a ghost? yeah, that's what it feels like because you have no idea. keith morrison: how was it possible melissa hadn't seen the person who'd shot ben? she'd been lying right next to him. why was she unharmed? that's kind of a test. your little red flags start popping up. you start thinking, ok, this doesn't seem right. keith morrison: and had craig, melissa's teenage brother, truly slept through the whole thing as he claimed? i opened my eyes, and right in my face was a bunch of barrels from a machine gun. keith morrison: it was police guns he was looking at, police who had already discovered shotgun shells on craig's bedroom dresser. here comes another red flag. is this a possibility? is he faking? keith morrison: melissa, craig, and