Purvis led the manhunts that tracked such outlaws as Baby Face Nelson and Pretty Boy Floyd, and most famously John Dillinger. J. Edgar Hoover, head of the FBI at the time, fired or demoted Purvis; some believe out of jealousy for all the attention Purvis was receiving.
Adding.....
"As a result of this fame, Purvis was seen as a real-life counterpart to the fictional detectives, such as Dick Tracy, that proliferated in the popular culture targeting boys during this period. As part of the radio program, listeners could join a "Junior G-Men" club and receive BADGES, manuals, and secret agent props."
Source: Wiki (emphasis added)
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