The Pinkerton Method

The true story of the first private detective force in the United States. A Rock Island train carrying $22,000 in cash is robbed, and the express car's agent murdered. William Pinkerton, son of the founder of the Pinkerton National Detective Agency and a passenger on the train, agrees to track down the guilty. After leaving for a few days to investigate another train robbery, he returns to the Rock Island case to put to work, in a seemingly casual manner, the Pinkerton Method: "diligence, doggedness, studying character, knowing your man."

CBS Radio Mystery Theater is a radio drama series created by Himan Brown that was broadcast on CBS Radio Network affiliates from 1974 to 1982, and later in the early 2000s was repeated by the NPR satellite feed. In New York City it was not aired by the then all-news WCBS but by its originating station, WOR, which produced and announced it as simply Radio Mystery Theater.

Wikipedia. CC BY-SA 4.0. Updated Jul 16, 2026.