On February 14, 1929, seven men were shot and killed in a garage in the Lincoln Park neighborhood of Chicago as part of the prohibition era gang wars. The men were affiliated with mob boss George "Bugs" Moran. Many historians signal this incident as a turning point, solidifying Al Capone as the undisputed mob boss of Chicago, but also causing the FBI to increase efforts to apprehend him, which ultimately ended in his arrest and conviction for tax evasion in 1931. No one ever went to jail for the killings, dubbed the St. Valentine's Day Massacre, although the FBI did receive information on who was involved in 1935. No action was ever taken, however, since all but two of the men named were dead by this point, and the FBI said they did not have jurisdiction in the matter.
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