Samuel Leonard Boyd is an Australian spree killer from New South Wales, currently serving four consecutive sentences of life imprisonment plus 25 years without the possibility of parole[1] for the murder of four people and the malicious wounding of a fifth between September 1982 and April 1983.
[3] and forced three female supervisors, Helen Hartup, Patricia Volcic and Olive Short, "to undress, perform sex acts on him and each other, bound their hands and feet and walked up and down from one victim to another slashing and stabbing each in turn in the neck".
In January 1985, Boyd was convicted on four counts of murder and one of malicious wounding by a jury, and was sentenced to 5 consecutive terms of life imprisonment without parole by Chief Justice O'Brien.
In 2016, Boyd made a final attempt to have a minimum term set, offering to undergo chemical castration in exchange for parole.
Boyd has denied being sexually excited by violence against women, and he told the court he had not had any fantasies of sadistic behaviour since he was incarcerated, and initially blamed the murders on cannabis and pesticides.