Public Enemy: The Extremely Brief and Violent Life of John Dillinger

Hoover appointed Melvin (Nervous) Purvis (played by Christian Bale in the film) to head the task force assigned to capturing Dillinger and his men.
AP

The G-Man
Hoover appointed Melvin (Nervous) Purvis (played by Christian Bale in the film) to head the task force assigned to capturing Dillinger and his men.

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