Krueger would often wander from his home by foot, bicycle or train to parts of Toronto, where he would molest dozens of children and ultimately murder three.

[4] He was also physically abused by at least one of his early foster parents, with a 2-year-old Woodcock having to be given medical treatment for an injured neck after receiving a beating.

[4] He was placed into a stable home at the age of 3 with foster parents Frank and Susan Maynard, an upper-middle-class couple with another son.

Susan Maynard, who was described as a "forceful woman with an exaggerated sense of propriety",[4] became strongly attached to the maladjusted child who would still scream when someone approached him.

[4] Worried about the child's fragile emotional state, Frank and Susan Maynard would regularly bring him to the Hospital for Sick Children, where Woodcock received extensive treatment.

[5] By the age of 11, he was described as an "angry little boy"; a Children's Aid Society report on him from that time read: Slight in build, neat in appearance, eyes bright, and wide open, worried facial expression, sometimes screwing up of eyes, walks briskly and erect, moves rapidly, darts ahead, interested and questioning constantly in conversation ...

[5] While his peers again shunned him, his teachers there remembered him as a very bright student who excelled in science, history, and English, and who frequently scored 100 percent on his tests.

[7] Peter Woodcock's prized possession was a red and white Schwinn bicycle on which he satisfied his continuing compulsion to wander.

[7] His foster parents were aware of this fantasy and his compulsion to wander, but they were unaware that he had begun travelling around Toronto on his bike and sexually assaulting children.

He then drove the boy to Cherry Beach, where he strangled and beat him to death—with a coroner later determining that Morris had died from a ruptured liver.

It appeared that she had been choked into unconsciousness and sexually molested, and that her death was caused by a tree branch being forcibly inserted into her vagina.

This sketch ran on the front page of the Toronto Star and would lead to Woodcock's arrest on January 21, 1957, and his subsequent confession to all three murders.

[1] Dyads were developed in the late 1950s to early 1960s by a Harvard psychologist and former CIA interrogation and psychological warfare expert, Henry A. Murray.

[1] Krueger convinced Hamill an alien brotherhood would solve his problems if he helped kill another Brockville inmate, Dennis Kerr.

[1] On July 13, 1991, Bruce Hamill went to a hardware store, bought a plumber's wrench, hatchet, knives and a sleeping bag, then went to the Brockville hospital and signed out the 52-year-old Krueger on his first publicly escorted day pass.

[15] For the murder of Dennis Kerr, Krueger was transferred back to the Oak Ridge division of the Penetanguishene Mental Health Centre, where he had spent the majority of his 34 preceding years in custody.

In the years after Kerr's murder, he was the focus of a biography and several documentary films and sometimes tried to explain why he killed, but he never came up with rational reasons.