The Killing Joke

Published in 1988 by DC Comics, The Killing Joke is a one-shot graphic novel written by Alan Moore with art by Brian Bolland. The narrative presents a possible origin story for the Joker, suggesting he was once a struggling comedian who turned to crime after personal tragedies. The plot centers on the Joker's attempt to drive Commissioner James Gordon insane, aiming to demonstrate that one bad day can push anyone over the edge. The story includes the brutal attack on Barbara Gordon, who is shot by the Joker and left paralyzed, a development that affected DC Universe continuity for years. Key characters include Batman, the Joker, Commissioner Gordon, and Barbara Gordon.