Two girls were arrested in the stabbing of a third girl in late 2014. They told detectives that the attack was an attempt to please Slender Man, a fictional character they found on a horror website. (Associated Press/File)
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Two girls were arrested in the stabbing of a third girl in late 2014. They told detectives that the attack was an attempt to please Slender Man, a fictional character they found on a horror website. (Associated Press/File)
