Disguised as law enforcement officers, gunmen murdered seven members and associates of George "Bugs" Moran's North Side gang at 10:30 in the morning of February 14, 1929.
|Chicago Tribune, Feb. 15, 1929.|
The helpless gangsters were then slaughtered in a hail of machine gun and shotgun fire. The killers escaped.
|Belvidere Republican, Feb. 14, 1929.|
|Decatur Herald, Feb. 14, 1929.|
|Uniontown PA Standard, Feb. 15, 1929.|
|Boston Globe, Feb. 15, 1929.|
|Minneapolis Star, Feb. 14, 1929.|
- James Clark, 42. The top lieutenant of George Moran (and often referred to in the press as Moran's brother-in-law), Clark (born Albert Kachellek) had been imprisoned several times for robberies and parole violation.
- Frank Gusenberg, 36. Often a suspect in burglaries and robberies, he served one jail sentence for disorderly conduct. He was considered an enforcer for Moran. He was the only one of the seven victims still living when police arrived. He died hours later.
- Peter Gusenberg, 40. The brother of Frank Gusenberg, he was the top enforcer of the Moran bootlegging operation. He served several prison terms for robberies and parole violation.
- Adam Heyer, 40. He had been in and out of prison since 1908, convicted of robberies, confidence games and parole violation. It was reported that Heyer managed the gang finances and ran the S.M.C. Cartage Company.
- John May, 35. A former thief, he was an associate of the Moran gang and worked as a automotive mechanic.
- Albert Weinshank, 35. A member of the Chicago cleaning and dying association, authorities believed he joined the gang when Moran was scheming to take control of that industry.
- Reinhardt Schwimmer, 30. An optometrist, he often socialized with the Moran gang and bragged of his underworld association.
|New York Times, Feb. 15, 1929.|
- "Doctor in massacre," Chicago Daily Tribune, Feb. 15, 1929, p. 1.
- "No one brought to trial for goriest gangland hit," Bloomington IL Pantagraph, Feb. 13, 1979, p. 6.
- "Police records tell lives of gang slain gangsters," Chicago Daily Tribune, Feb. 15, 1929, p. 2.
- Binder, John J., Al Capone's Beer Wars, Amherst, NY: Prometheus Books, 2017.
- Gomes, Mario, My Al Capone Museum, myalcaponemuseum.com.
- Helmer, William J., Al Capone and His American Boys, Bloomington: Indiana University Press, 2011.
- Helmer, William J., and Arthur J. Bilek, The St. Valentine's Day Massacre, Cumberland House, 2006.
- Kobler, John, Capone: The Life and World of Al Capone, New York: G.P. Putnam's Sons, 1971.
- Koziol, Ronald, and Edward Baumann, "Chicago's grisly wall," Chicago Tribune, Feb. 13, 1987, p. 5-1.