Dragnet - Season 4 - Eps 15: Homicide - Who Killed Who?
There is a multiple homicide at a rooming house. When Joe and Bill arrive, they find two dead in the lobby near a broken TV set and the manager has been shot and is near death. The manager mumbles the words "oft one" to Joe as he is taken away to the hospital. Bill and Joe start searching for clues and what the manager's words mean.
About Dragnet

Title: Dragnet
First Air Date: 1967-01-12
Last Air Date: 1970-04-16
Status: Ended
Rating: 6.9/10 (from 15 votes)
Language: EN
Seasons: 5
Total Episodes: 98
Network: NBC
Genres: Crime, Drama, Mystery
Production Companies: Universal Television, Dragnet Productions, Mark VII Ltd.
Synopsis
Police Detective Sgt. Joe Friday and his partners investigate crimes in Los Angeles.
Cast

Harry Morgan
Officer Bill Gannon

Jack Webb
Sergeant Joe Friday