S1, E5: A wealthy couple, Alan and Janet Ralston, return home after a party. As they enter the parking garage, a young black man, Willie Tivnan, slips in behind them. Outside on the street several people hear a shot then two more. Detectives Greevey and Logan soon appear and discover Alan Ralston dead, his wallet missing, Janet wounded, and her purse missing. The only witness to have seen Tivnan is a drunk. At the precinct, he identifies Tivnan's photo twice. It seems to be an open-shut case, but this is just the beginning...