Harold Shipman's Bonesaw

Origin
Harold Shipman was a general practitioner and serial killer found guilty of 15 murders, but confirmed to be responsible for at least 218 after his conviction. The majority of his victims were women who were killed by intentional prescription overdosing. He was sentenced to life imprisonment in 2000 and the judge recommended that he never be released. His murders resulted in the restructuring of Britain’s legal system concerning medicine.

Effects
Being cut with the saw will not result in injury to the skin or other organs. Instead, the victim will die of a strange natural cause, such as old age during adolescence or lethal disease to a healthy person.