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 handed three life sentences on 28 February 1996, with a recommendation that he serve a minimum of 35 years before the Home Secretary considers his eligibility for release.