On February 14, 1929, seven members of Bugs Moran’s North Side Gang lined up in a Chicago garage, thinking they were being arrested over a hijacked liquor shipment—until the “officers” pulled out Thompson submachine guns and executed them against a brick wall in what would become known as the St. Valentine’s Day Massacre. Widely believed to have been ordered by Al Capone’s Outfit, the hit missed its real target only because Moran showed up late, spotted what he thought was a police car outside 2