The St. Valentine's Day Massacre.
D002641:Chicago; D005554:Forensic Medicine / Q000266:history* / Q000379:methods; D049673:History, 20th Century; D006708:Homicide; D006801:Humans; D007087:Illinois; D008297:Male; D014481:United States; D014948:Wounds, Gunshot / Q000453:epidemiology* / Q000266:history