Harold Frederick Shipman (14 January 1946 – 13 January 2004) was an English general practitioner and is believed to be the most prolific serial killer in history.
On 31 January 2000, a jury found Shipman guilty of the murder of 15 patients under his care, with his total number of victims estimated to be around 250.
He was sentenced to life imprisonment with the recommendation that he never be released.The Shipman Inquiry, a two-year-long investigation of all deaths certified by Shipman, which was chaired by Dame Janet Smith, examined Shipman's crimes.
The inquiry identified 215 victims and estimated his total victim count at 250, about 80% of whom were elderly women.
Shipman's youngest confirmed victim was a 41-year-old man, although "significant suspicion" arose that he had killed patients as young as four.Much of the United Kingdom's legal structure concerning health care and medicine was reviewed and modified as a result of Shipman's crimes.
He is the only British doctor to have been found guilty of murdering his patients, although other doctors have been acquitted of similar crimes or convicted on lesser charges.Shipman committed suicide on 13 January 2004, one day prior to his 58th birthday, by hanging himself in his cell at Wakefield Prison.