The Green Cap Case Aka Gas Station Attendant Killed

The Lineup is a half-hour American radio police drama that was broadcast on CBS from July 6, 1950, until February 20, 1953. It began as a summer replacement for The FBI in Peace and War. A year after the program ended, a successful television version debuted, followed by a feature film.

Wikipedia. CC BY-SA 4.0. Updated Nov 7, 2025.

“The Green Cap Case Aka Gas Station Attendant Killed.” The Lineup. Radio broadcast, October 22, 1952.