The Saint Valentine's Day Massacre was the murder of seven members and associates of Chicago's North Side Gang on Saint Valentine's Day 1929. The men were gathered at a Lincoln Park, Chicago, garage when between four and six men entered, two of whom were disguised as police officers. The seven men were lined up facing a wall and shot with Thompson machine guns and a shotgun; seventy rounds were fired from the Thompsons, and one cartridge was discharged from the shotgun. Six of the victims died immediately; one lived for a short while but refused to identify the killers. The murders occurred amid the competition for control of organized crime in the city during Prohibition. Police and historians have speculated that the murders were an attempt to kill the head of the North Side Gang, George "Bugs" Moran, although he had not arrived by the time the attack started. The North Siders were rivals of the Chicago Outfit, a criminal organization...