The Night Chicago Died the U.S. at the height of its popularity because of contractual issues. "The Night Chicago Died" is about a shoot-out between the Chicago Police and gangsters tied to Al Capone. It was inspired by the real-life Saint Valentine's Day Massacre, although that involved Capone's men killing seven of Bugs Moran's gang members and had nothing to do with the police. The song's events supposedly take place "on the East Side of Chicago". Chicago has three commonly referred-to regions: the North Side, the West Side and the South Side. There is no East Side, as Lake Michigan is immediately east of
Saint Valentine's Day Massacre were tested and it was determined that both had been used in the massacre. One of them had also been used in the murder of Brooklyn mob boss Frankie Yale, which confirmed the New York Police Department's long-held theory that Burke, and by extension Al Capone, had been responsible for Yale's death. Gun No. 2347 had been originally purchased on November 12, 1924, by Les Farmer, a deputy sheriff in Marion, Illinois, which happened to be the seat of Williamson County. Marion and the surrounding area were then overrun by the warring bootleg factions of the Shelton Brothers and Charlie