Perfect Witness (1989)

Perfect Witness (1989) Story of a man (Quinn) who witnesses a mob killing and rather than testify he goes to prison. When released, he decides to finally testify, even though it means that he and his family will have to go into the "witness protection program" thereby disrupting their lives. However, an unexpected courtroom maneuver by the prosecuting attorney (Dennehy) changes the outcome for this man.