Jigsaw John is an American crime drama television series that aired on NBC from February 2 until June 14, 1976, based on the career of real-life Los Angeles Police Department (LAPD) robbery-homicide Detective "Jigsaw John" St. John.
It was preceded, during the previous television season, by the TV movie They Only Come Out at Night.
[1][2] John St. John is an LAPD detective who solves murder cases.