01 May - J Edgar Hoover arrests last of Ma Barker's 'boys' Alvin Karpis

Karpis wasn’t actually one of Ma Barker’s four sons but it was after he met her youngest, Fred, that the family gang became a federal concern. Karpis suggested the kidnap of a banker but he was the son of a friend of President Roosevelt. This made them Public Enemy No1 to director and founder of the FBI, J Edgar Hoover. Karpis wrote to Hoover promising to kill him. Instead, months later, he was stopped and surrounded by a dozen agents so that Hoover himself could walk up and make the arrest... Read the full Ma Barker Crime File

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