George Clarence "Bugs" Moran (/məˈrɑːn/; born Adelard Leo Cunin; August 21, 1893 – February 25, 1957) was an American Chicago Prohibition-era gangster.

Seven members of his gang were gunned down and killed in a warehouse in the Saint Valentine's Day Massacre of February 14, 1929, supposedly on the orders of his rival Al Capone.

He was later caught robbing a store and was sent to the state juvenile correctional facility, and was put in jail three times before he turned 21.

He then fled to Chicago where he was caught trying to rob a warehouse, taking part in a horse-stealing ring, taking part in robbery involving the death of a police officer,[1] and robbing a freight car, for which he received a variety of prison and jail sentences.

[2] The bootlegging operation of Hymie Weiss and Bugs Moran continued to pose a significant challenge to Capone's South Side Gang.

Later they went on to make a failed attempt on Al Capone's life at his headquarters, the Hawthorne Inn in Cicero, Illinois.

According to Paul Maccabee, a historian of Twin Cities organized crime, Bugs Moran had a close friendship with St. Paul–based Irish mob boss Danny Hogan.

[2] Two gunmen—dressed as Chicago police officers and two others in plain clothes—lined up Moran's people (and two men who were not gang members and just happened to be there by chance) against the wall in the warehouse and shot them.

Bugs Moran, the main target of the assassination, was not present, arriving late; when he saw the approaching police car, he turned around going to a nearby café instead.

Prior to the massacre, some officers were stealing bootleg liquor from the gang's trucks and were allegedly disciplined by the chief of police, but no substantiation is available.

On July 6, 1946, he was arrested for his involvement in the robbery of a Dayton, Ohio, tavern on June 28, 1945, and received a sentence of 20 years.

Moran died of lung cancer a few months into his 10-year sentence at Leavenworth Federal Prison in Kansas on February 25, 1957, at the age of 63.