Killer Nicholas Prosper was so twisted he was BANNED from website where people go to watch others die: Luton teen boasted about mutilating his sister, 13, over computer game row before executing his family and attempting school gun massacre

Nicholas Prosper, a twisted killer, posted chilling videos online outlining his intention to violently harm his 13-year-old sister over her actions in a computer game. His disturbing content, which included threats of mutilation, was so depraved that he was banned from a gore website for his warped views on child abuse. He spent so much time online that neighbors were unaware of his existence. Prosper’s repulsive rants, involving sexual abuse of children, led to his ban from online forums.

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