January 1929. Gangster Matt Malloy walks into a sporting goods store; he can't buy an automatic pistol without a police permit, however anyone with $150 can buy a machine-gun. Later, at the Club Montmartre, half a dozen choppers are laid out on Nitti's table. The Council says that now they can move in on the Northside and Bugs Moran. Nitti picks up a chopper and says, ""You got 'em-- use 'em!"" Gang war! The following weeks are the bloodiest in Chicago history; Nitti's gang strikes again and again with choppers at the Bugs Moran mob. The climax is the St. Valentine's Day massacre, Feb. 14, 1929. An immediate ban on machine-guns goes into effect. Feb. 16, Enrico Rossi and Jack Rossman are confiscating choppers from the sporting goods store; Ness and Lee Hobson, with a search-and-seizure warrant, raid Nitti's Montmartre club. Nitti tells Ness he'll get more choppers; Ness tells him there won't be a single one left in town. Nitti sneers, ""A lot of punks have tried to buck the