This tragedy in a North Side garage was a major factor in the establishment of the National Firearms Act
The Final Jeopardy clue for Tuesday, November 10, 2026, appeared in the category “Acts of Congress” and read: “This tragedy in a North Side garage was a major factor in the establishment of the National Firearms Act.” The clue points to one of the most notorious gangland killings of the Prohibition era. The correct response is the St. Valentine’s Day Massacre.
What Was the St. Valentine’s Day Massacre?
The correct response is the St. Valentine’s Day Massacre, the February 14, 1929 killing of seven men inside a garage on Chicago’s North Side.
The victims were associated primarily with the North Side Gang, which was then in violent conflict with the organization led by Al Capone. The killings became one of the defining episodes of Prohibition-era organized crime.
What Happened Inside the Garage?
The massacre took place at the S.M.C. Cartage Company garage at 2122 North Clark Street.
Several gunmen entered the building, with some reportedly dressed as police officers. The men inside were lined up against a wall as though they were being arrested before the attackers opened fire.
Why the Attack Became So Infamous
The brutality of the killings shocked the country.
Machine guns were used at close range, and more than 70 rounds were reportedly recovered from the scene. Images of the aftermath circulated widely and reinforced public fears about heavily armed criminal organizations operating during Prohibition.
The Connection to Al Capone
The massacre was widely linked to the rivalry between Al Capone’s Chicago Outfit and the North Side Gang led by George “Bugs” Moran.
Capone himself was in Florida when the killings occurred, and no one was ever convicted for organizing the massacre. Nevertheless, the event became inseparable from his reputation and the violent gang wars of 1920s Chicago.
Bugs Moran Escaped the Attack
George “Bugs” Moran was believed to have been an intended target but was not among the seven men killed.
Accounts of the event say Moran was approaching the garage when he noticed what appeared to be a police presence and stayed away, unintentionally avoiding the ambush.
Why Machine Guns Became a National Concern
The Thompson submachine gun, often called the Tommy gun, became particularly associated with gang violence during the period.
Its ability to fire rapidly made it a symbol of the heavily armed criminals who attracted national attention in the late 1920s and early 1930s. The St. Valentine’s Day Massacre became one of the clearest examples cited when federal lawmakers considered stronger firearms regulation.
The National Firearms Act of 1934
Congress ultimately passed the National Firearms Act in 1934, one of the first major federal laws regulating firearms in the United States.
The law imposed taxes and registration requirements on certain weapons, including machine guns, short-barreled rifles and shotguns, and silencers. Its purpose was in part to make weapons strongly associated with organized crime more difficult to obtain and transfer.
A Crime That Influenced Federal Law
The St. Valentine’s Day Massacre was not the only episode of gang violence that influenced lawmakers, but it became one of the most famous examples behind the push for federal regulation.
The spectacle of seven men being gunned down with automatic weapons inside a Chicago garage gave the debate over machine guns a vivid and highly publicized symbol.
Why the St. Valentine’s Day Massacre Is the Correct Answer
The phrase “North Side garage” is the strongest identifying detail in the clue.
Combined with the reference to the National Firearms Act, it points directly to the St. Valentine’s Day Massacre, the 1929 Chicago gangland killing that helped build public and political support for federal restrictions on machine guns.