S4, E9: After mud wrestler Tanya Yeager is found stabbed to death, Chris and Rita are skeptical when talent agent Joey Mellman claims he can identify the killer's voice. But when they find fellow wrestler Cindy Dann going through Tanya's condo, Joey also pops up with an offer to help with the investigation. Cindy says that Tanya's husband Paul had threatened to kill her, so Chris and Rita head for the spa where he works -only to find that Joey has beat them there, too. But, Yeager insists he was with a client who can give him an alibi and claims his late wife was a morphine addict. Then, after Chris and Rita discover Tanya also made a good living bilking her many boyfriends, an attempt on Joey's life lands him in protective custody with Captain Lipschitz.