The Mad Bomber (1973) [Blu-ray]

A psycho citizen (Chuck Connors of THE RIFLEMAN and TOURIST TRAP) is planting deadly bombs across Los Angeles. A depraved rapist (Neville Brand of BIRDMAN OF ALCATRAZ and EATEN ALIVE) is the only witness who can identify him. And a deranged detective (Vince Edwards of BEN CASEY and RETURN TO HORROR HIGH) will break every rule in the book to bust them both.