Steven John Grieveson (born 14 December 1970) is a British serial killer known as the Sunderland Strangler, who murdered four teenage boys in a series of killings committed between 1990 and 1994 in Sunderland, England.
Convicted of three counts of murder at Leeds Crown Court, Grieveson was sentenced to life imprisonment on 28 February 1996, with a recommendation that he serve a minimum of 35 years before the Home Secretary considers his eligibility for release.In October 2013, Grieveson was convicted of the 1990 murder of 14-year-old Simon Martin at Newcastle Crown Court, and sentenced to a fourth term of life imprisonment.
He is currently incarcerated at HMP Full Sutton maximum security prison in the East Riding of Yorkshire, England.
Grieveson became known as the Sunderland Strangler due to the city in which he committed his murders, and his preferred murder method of ligature strangulation.