The Saint Valentine's Day Massacre is the name given to the 1929 murder of six mob associates and a mechanic of the North Side Irish gang led by Bugs Moran during the Prohibition Era. It resulted from the struggle between the Irish American gang and the South Side Italian gang led by Al Capone to take control of organized crime in Chicago. Former members of the Egan's Rats gang were also suspected of having played a significant role in the incident, assisting Capone.