Adelard Cunin ( August 21 , 1893 – February 25 , 1957 ) , better known as George " Bugs " Moran ( ) , was a Chicago Prohibition-era gangster . He was incarcerated three times before his 21st birthday . Seven members of his gang were gunned down in a warehouse in the Saint Valentine 's Day Massacre of February 14 , 1929 , supposedly on the orders of his rival Al Capone
Saint Valentine 's Day Massacre
Saint Valentine's Day Massacre
Bugs Moran