The valentine's day massacre
This rash of gang violence reached its bloody climax in a garage on the city’s North Side on February 14, 1929, when seven men associated with the Irish gangster George “Bugs” Moran, one of Capone’s longtime enemies, were shot to death by several men dressed as policemen. The St. Valentine’s Day Massacre, as it was known, was never officially linked to Capone, but he was generally considered to have been responsible for the murders.