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Unrepentant mass murderer of fictional characters J.K. Rowling has always maintained that killing off so many "Harry Potter" peeps was a difficult but necessary task: that they had to die, all of them, in order to move the story forward.

But it turns out, the "Harry Potter" author did do one killing that she feels really, really bad about: A minor character named Florean Fortescue, who we met in "Harry Potter and the Prisoner of Azkaban."

"I seemed to have him kidnapped and killed for no good reason," Rowling wrote on Pottermore. "He is not the first wizard whom Voldemort murdered because he knew too much (or too little), but he is the only one I feel guilty about, because it was all my fault."

Apparently, the author originally intended for Florean to play a bigger part in the final "Harry Potter" book, but his role was overtaken by a portrait of Phineas Nigellus Black -- and so Florean was never rescued from his kidnapping situation, a casualty of poor plotting. But while J.K. Rowling clearly feels awful about poor Florean, we can think of a few characters who are more deserving of a guilty conscience: