Perry Mason - Season 6 Episode 5 : The Case of the Hateful Hero 1966

Young cop Jimmy Anderson, cousin of Lt. Anderson, and veteran Otto Norden come across a robbery at the Wilson Plastics Company while on patrol one night. A shooting occurs and Otto is killed. Evidence then points to Jimmy as having been an accomplice in the burglary and he is suspended from the police force. Then the night watchman at Wilson Plastics, a disgraced ex-cop, is found strangled to death. Lt. Anderson then asks Perry to look into things and defend Jimmy against all charges.