Bob the Goon

From Multiversal Omnipedia

Petty crook Robert Capistrano, better known as Bob the Goon, was a long-time friend and ally of Jack Napier. He was with Napier the night he shot and killed the parents of a young Bruce Wayne, and he continued to work with him years later under Carl Grissom. Bob opted to stick with Napier when he became Joker, and became the leader of his henchmen. Although Bob was a very loyal and reliable underling, the Joker was completely insane didn't care about any of that. After Batman foiled his plan to poison Gotham City with Smylex gas, the Clown Prince of Crime took out his frustration on poor Bob, shooting his loyal thug with Bob's own gun.