Alison May Campbell Parrott (September 28, 1974 – July 25, 1986) was an 11-year-old Canadian girl who was lured out of her home by a male phone caller in Toronto, Ontario, Canada.

A decade later, a link analysis helped Toronto homicide detectives match the DNA evidence with a man who was charged with the crime.

[5] Shortly before 11 o'clock on the morning of July 25, 1986, Parott received a phone call at her Summerhill Avenue home in midtown Toronto.

A male caller, claiming to be a photographer, asked her to meet him at the University of Toronto's Varsity Stadium where, he said, he would be taking publicity photos of her and her teammates.

When he was identified as Paul Bernardo, the police knew they needed another man because DNA gathered from traces of semen found on Alison's clothes did not match.

[10] Francis Carl Roy (born September 18, 1957)[11] was questioned by police during their first round of interviews, as he used the same training facility as Alison's track club, and also because he had a criminal record.

He was an avid runner with a keen interest in photography and had a criminal record dating back to 1976, including possession of stolen property, petty theft, fraud, assault, breaking and entering, and rape.

[12] At the time of Alison's murder, Roy had been on parole after serving only two and a half years of a consecutive 11-year sentence for the rapes of a 14-year-old girl and 19-year-old woman.

[1] Moreover, when Alison's body was found in July 27, Roy appeared at the police station to confess to assaulting a 20-year-old woman in his apartment two days earlier.

[14] Reading over the initial police interview and other reports from Roy's parole officer, they were struck by inconsistencies and deceptions in the suspect's story.

[21][22] Both Alison and her younger brother had attended an all-day "streetproofing" seminar the year before her murder, in which young children receive instruction on how to "avoid potential molesters and abductors".

[2][4] The fourth episode of season 1 of Cold Case Files, titled "Answer in the Box; Maternal Instinct" (1999), follows the disappearance of Alison and subsequent investigation of the crime.

Killer in a Box (1999) was the second episode of season 3 of Exhibit A: Secrets of Forensic Science, a Canadian documentary television program, hosted by Graham Greene, that revisited criminal cases.