Dragnet Radio Series Ep: 050 "The Big Key"*

Air Date: 05/25/50

Maria Comacho is found murdered in a churchyard; her body shows the marks of a savage attack. The clues are meager: a key, a pen, and a shoe polish smear.

*= Originally sponsored by Fatima Cigarettes. (Use of tobacco products is not generally advised, but the sponsor's ads are included for historical accuracy.)