William Perry Jackson (born January 1955) is an American serial killer who, together with two accomplices, killed five people during robberies in Washington and Oregon from May to August 1980.
The first death linked to Jackson occurred on May 21, 1980, when he and 27-year-old accomplice Gary Allen Smith went to a kiosk in the Portland Transit Mall, where they beat up the janitor, 45-year-old Calvin Toran.
Smith then drove the car an isolated area near Rose Lodge, all the while Jackson and Butler raped Ulrich in the back seat.
[3] While investigating Ulrich's kidnapping, local authorities learned that a man by the name of Michael Anthony Butler had made remarks about the incident that indicated he had intimate knowledge of the crime.
He was then arrested in Forest Grove and brought to the nearest police station, where he readily admitted guilt to the abduction and murder, even offering to show detectives where he believed the body might be buried.
When this was denied, Burke agreed to lift a gag order regarding the confessions, much to the dismay of Jackson's attorney, who wanted some of the evidence suppressed.
Shortly after pleading guilty and receiving another life for the murder of Wilson, he volunteered to participate in medical research programs as a test subject for drug experimentations.
During the proceedings, the two men gave conflicting accounts of what had happened, with Jackson claiming that Smith had sexually abused, beaten and stomped on the elderly woman while he just idly stood by.
[14] Smith would eventually be convicted of the murder and sentenced to life imprisonment without parole, but continued to proclaim his innocence, in addition to verbally degrading his former accomplice.