Back in 1988 Alan Moore rocked the comic world (again) with his one-shot graphic novel The Killing Joke. Within the pages of this masterpiece Moore set what many feel is the definitive backstory of the Batman supervillain The Joker. Not only that, but the story would prove as a defining moment for another character, Barbara Gordon (Batgirl). In a vicious assault Joker leaves her paralyzed, something that not only would define her character as much as being the first Batgirl (there have been three others: Bette Kane, Cassandra Cain, and Stephanie Brown) but lead her to becoming a role model to paraplegic individuals when she would later take up the mantle of Oracle. For the last 28 years The Killing Joke has stood as one of the most beloved and twisted Batman tales.