up back together. >> reporter: he told her, said adrienne, he was thinking of changing his lifestyle, quitting poker if only she'd take him back. but she was a different adrienne now. >> i think i kind of felt more powerful in that conversation than i had with him in a long time because i know that i don't trust a single word that he says. >> reporter: meanwhile, back in vegas, detectives learn days before the murders ernie scherer had made an unusual request of this man, his name is david mock. >> he asked me if i would do something slightly illegal for $300. how can you make your hair even stronger?