Saint Valentine's Day Massacre

The February 14, 1929, killing of seven men associated with George “Bugs” Moran’s gang in a Chicago garage. The attackers were linked to Al Capone’s criminal organization.

Prohibition in the United States: The nationwide ban on the manufacture, sale, and transportation of most alcoholic beverages from 1920 to 1933. The illegal liquor trade created the profits and rivalries behind the Chicago gang conflict.
Police impersonation: The act of falsely presenting oneself as a law-enforcement officer. Attackers reportedly used police disguises to make the garage occupants comply.
Chicago Crime Commission: A civic organization founded in 1919 to investigate crime and promote law enforcement in the Chicago area. Its public campaign against organized crime gained force after the massacre.
Fred Burke: An American bank robber and alleged gang member whose weapons were linked to the Saint Valentine's Day Massacre investigation. A machine gun found in his possession was connected to the crime through ballistics.
Chicago Outfit: A Chicago organized-crime group that grew to prominence during Prohibition and became associated with Al Capone. Its conflict with Moran’s organization formed the massacre’s criminal backdrop.
Execution-style killing: A killing carried out at close range in a manner resembling a deliberate execution. The victims were lined against a wall and shot at close range.
Public enemy: A label popularized in the United States for prominent criminals considered threats to public safety. The massacre helped make Capone a nationally notorious symbol of gang violence.
Earle J. Christman: An American police officer who investigated the Saint Valentine's Day Massacre. His investigation pursued evidence linking weapons and suspects to the killings.
Al Capone: An American organized-crime leader who headed the Chicago Outfit during much of Prohibition. Investigators and historians linked men acting for his organization to the killings.
Thompson submachine gun: An American submachine gun developed during World War I and widely used by law enforcement and criminals in the 1920s. The attackers used automatic weapons, including a Thompson, in the garage.

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