Right up until the moment he shot dead his mother and two siblings last September, Nicholas Prosper was seen as a loner - a socially awkward computer geek who kept himself to himself.
Nicholas Prosper, a 19-year-old, pleaded guilty to murdering his mother and two siblings in Luton. Neighbors described him as a "weird and warped teen" with deteriorating mental health, who was a loner with disturbing online activity, including being banned from a death-related website for sickening views. Concerns were raised about his mother's ability to cope with him after her divorce. Prosper made a video hours before the killings, detailing how he was going to mutilate his sister's face for making wrong choices in a video game. Questions are being raised about the UK's gun laws and online weapon sales.
