G-Man (short for Government Man) is a slang term for Special agents of the United States Government. It is specifically used as a term for a Federal Bureau of Investigation (FBI) agent. In FBI mythology, the nickname is held to have originated during the arrest of gangster George "Machine Gun" Kelly by agents of the Bureau of Investigation (BOI), a forerunner of the FBI, in September 1933. Finding himself unarmed, Kelly supposedly shouted "Don't shoot, G-Men! Don't shoot, G-Men!". This event is dramatized in the 1959 film, The FBI Story, where its somewhat implausible quality is in no way diminished. The earliest cite in OED for the American usage (as opposed to the Irish, see below) is 1930 from a book on Al Capone by FD Pasley.