tom wanting sharon dead. but there's more. sharon is not the first mrs. randolph to have met a tragic end. >> he's been married six times. four of his wives are dead. you know, this isn't a coincidence. >> and tom had taken out large life insurance policies on all of them, too. >> they were way to generate money. and he did that for 30 years. >> one wife, number four frances, would suspiciously die in her hospital bed after undergoing successful heart surgery, according to family members. >> everything's fine. >> she's doing great. until tom tells her daughter he wants to be alone with frances. >> thomas comes out sometime later and tells her that her mom is dead, and she has no idea how that could have happened. there's no autopsy. she's cremated. he then sends her remains in pill bottles to her family members. >> investigators also learned that a young tom had allegedly tried to hire a hitman to murder two other wives, but tom's offers had been declined by the prospective hitman, one of whom feared for his own life. >> he said, immediately after i shoot her, you