Subtitle The St. Valentine's Day Massacre -

The was the execution-style murder of seven members and associates of the North Side Gang in Chicago on February 14, 1929 . The event is widely regarded as the most infamous gangland killing of the Prohibition era, marking a decisive shift in power toward Al Capone and his South Side Gang . Event Overview

The brutality of the massacre and the use of submachine guns directly influenced the passage of the National Firearms Act of 1934 .

The case was one of the first major crimes to use ballistics science . Dr. Calvin Goddard proved that the weapons used were not official police firearms but were matched to two Tommy guns later found at the home of Capone associate Fred Burke . subtitle The St. Valentine's Day Massacre

No one was ever prosecuted for the murders. However, the public outcry led federal authorities to target Al Capone, eventually leading to his 1931 conviction for tax evasion .

SMC Cartage Company garage at 2122 North Clark Street , Lincoln Park, Chicago. Time: Approximately 10:30 a.m. . Casualties: 7 men were killed. The was the execution-style murder of seven members

To complete the deception for onlookers, the two "uniformed officers" led the two "plainclothes" men out of the garage with their hands up, as if they were making an arrest.

Al Capone (who was in Florida at the time to establish an alibi). The Execution The case was one of the first major

Top gang enforcers. Frank was the only one found alive, but he died shortly after, refusing to identify the shooters with the words, "No one shot me". Adam Heyer: The gang's business manager and bookkeeper. Albert Weinshank: A gang associate and speakeasy manager.