just 30 miles away was lake mead, which could make things disappear even more efficiently than david copperfieldof mine actually called lake mead "lake mafia." >> the .22, shot in the back of the head, and placed into an oil drum is definitely all signatures of the mob. >> chris: so who was the vic? well, mob-savvy citizens of speculation nation spoke out. and have their own ideas. could it be the long-gone jay vandermark, alleged to have skimmed from the stardust casino slots? or vegas businessman frank rossana, who mysteriously vanished in 1988? or was it this dapper gent standing next to liberace? >> the most likely person is a man named johnny pappas. >> chris: what did you know about your uncle? >> he was bigger than life. he did a lot of work with the stars, and he was one of those people that everybody just loved. >> chris: patricia haas grew up hearing that her charming uncle johnny, her mother's brother from youngstown, ohio, had moved to nevada and was rubbing elbows with the vegas showbiz elite. >> chris: oh, that's sinatra and dean martin. and that's sammy davis jr. >> sammy davis jr