NFL
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
Twisted killer Nicholas Prosper chillingly outlined his murderous intent in a 70-second video recorded just hours before he slaughtered his family.
Wearing a yellow bucket hat and a black T-shirt, the teenage fantasist calmly and dispassionately said he would take violent revenge against his 13-year-old sister Giselle over her actions in a computer game.