Batman: The Killing Joke (Batgirl / Barbara Gordon)
In this graphic novel, the Joker shoots and paralyses Barbara Gordon, a.k.a. Batgirl, in an attempt to drive her father insane, thereby proving that anyone can be morally compromised. Shot and grievously wounded, Barbara Gordon is then stripped of all of her clothing, photographed completely naked, and possibly raped by the Joker, furthering her degradation.
Although events in The Killing Joke exert a great impact on Barbara, the story has little to do with her. She is deployed as a plot device to cement the Joker’s vendetta against Commissioner Gordon and Batman.