Returning to Gotham City, the thug formed his own gang and staged a robbery at the Ace Chemical Plant, which was thwarted by Batman. Horrified, she rushed inside to find her father murdered in cold blood. Beaumont’s daughter, Andrea, returned home from grocery shopping, only to see the thug emerging from the house, casually walking past her. His target was businessman Carl Beaumont after mob bosses Sal Valestra, Buzz Bronski and Chuckie Sol discovered he had embezzled from them.
One of his last known jobs took place in Europe on the Mediterranean Coast. The Joker was originally an unidentified criminal operating under a number of aliases, who started out as both a hitman and a chauffeur working for the Valestra mob.