One day in 1981, Joe Chill would encounter Thomas Wayne and his family in Crime Alley after they left the Aragon Theatre. It is unclear if he was there by chance or if he was intentionally waiting for the Waynes. He brought his pistol to bear and threatened them for their valuables. Thomas tried to protect his wife and son as he attempted to punch Chill, but Joe shot him. Martha Wayne tried to wrestle the gun away from Chill, but he managed to shoot her too. Chill quickly made an escape, leaving Bruce Wayne as an orphan. After this event he disappeared and was never caught.
His murder of the Waynes was the main catalyst and motivation of Bruce taking up a life of vigilantism. When Bruce reached adulthood, he became a notorious vigilante known as Batman in an attempt to batter the crime rates in Gotham City, mainly influenced by the injustice surrounding the deaths of his parents. As a result, Bruce came into conflict with many formidable crime lords, the most formidable of them being the Joker, who became the Batman's arch-enemy.
- In DC Comics, originally Joe Chill was hired to kill Thomas and Martha Wayne by Lewis Moxon.
- Joe Chill in the DC Extended Universe is the third live action incarnation of the character, following incarnations played by Clyde Gatell and Richard Brake.
- Goyer, David S., Terrio, Chris (writers) & Snyder, Zack (director) (March 25, 2016). Batman v Superman: Dawn of Justice.
- Guide to the Caped Crusader/Guide to the Man of Steel