was that why he reached out again to adrienne salomon with this request? >> i'm really hoping we can end up back together. >> reporter: he told her, said adrienne, he was thinking of changing his lifestyle, quitting po 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 i don't trust a single word that he says. >> reporter: meanwhile back in vegas, detectives learned that just days before the murders, ernie shearer had made a rather unusual request of this man, his name is david mock. >> he asked me if i would do something slightly illegal for $300. >> reporter: david is a professional piano player in vegas. >> he said oh, i'm looking to get a gun because i'm a professional gambler, and i carry a lot of money. i thought, you know, no. i'm not going to do that. >> reporter: and investigators discovered ernie also asked david's performance partner to buy him a gun and offered another friend $50,000 to point the finger of suspici