Peter Britton Tobin (27 August 1946 – 8 October 2022) was a Scottish convicted serial killer and sex offender who served a whole life order at HM Prison Edinburgh for three murders committed between 1991 and 2006. Police also investigated Tobin over the deaths and disappearances of other young women and girls. Tobin was identified as a psychopath by a senior psychologist and it was thought he might be connected with the Bible John murders of the late 1960s, although police eventually ruled him out of the murders. Tobin reportedly claimed in prison of having murdered 48 people.