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Crime & Justice • Wrongful Conviction

Guy Paul Morin

Guy Paul Morin is a Canadian man who was wrongfully convicted of the 1984 rape and murder of his nine-year-old neighbour, Christine Jessop, in Queensville, Ontario.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Guy Paul Morin is a Canadian man who was wrongfully convicted of the 1984 rape and murder of his nine-year-old neighbour, Christine Jessop, in Queensville, Ontario. His conviction was overturned after DNA evidence excluded him, and he was formally acquitted in 1995. A later public inquiry found major errors in the investigation and prosecution, and in 2020 police identified Calvin Hoover as the source of semen recovered from Jessop’s underwear.

Background

Guy Paul Morin became a suspect after the 1984 killing of nine-year-old Christine Jessop in Queensville, Ontario. The case became one of Canada’s best-known wrongful conviction cases.

Trial and conviction

Morin was tried twice and was convicted of first-degree murder in 1992 after being acquitted in an earlier proceeding. His conviction was widely criticized because of disputed evidence and investigative errors.

Exoneration

In 1995, the Ontario Court of Appeal entered an acquittal after DNA testing excluded Morin. The acquittal ended his criminal case and cleared him of responsibility in the murder.

Public inquiry

The 1996 Kaufman Commission examined the case and concluded that the investigation and prosecution suffered from major failures, including tunnel vision, disclosure problems, and misuse of science.

Later identification of the killer

In 2020, Toronto Police Service announced that Calvin Hoover, who had died in 2015, matched DNA evidence linked to the crime.

Key facts

  • Morin was convicted in 1992 of the murder of Christine Jessop, a child who lived near him in Queensville, Ontario.
  • He was acquitted by the Ontario Court of Appeal in 1995 after fresh DNA evidence excluded him.
  • The Ontario government later established a public inquiry into the case, led by Justice Fred Kaufman.
  • The inquiry criticized police, forensic, and prosecutorial errors, including tunnel vision and problems with scientific evidence.
  • In 2020, Toronto police announced that DNA evidence identified Calvin Hoover as the source of semen recovered from Jessop’s underwear.
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Canadian context

The case is a major Canadian wrongful conviction case and is often cited in discussions of criminal justice reform, forensic evidence, and police investigation practices in Canada.

Frequently asked questions

Who is Guy Paul Morin?
He is a Canadian man wrongly convicted of the 1984 murder of Christine Jessop in Ontario.
What was Guy Paul Morin convicted of?
He was convicted of first-degree murder in 1992.
How was Morin exonerated?
His conviction was overturned in 1995 after fresh DNA evidence excluded him.
What did the Kaufman Commission find?
It found serious investigative and prosecutorial failures, including tunnel vision and scientific errors.
Was the real killer ever identified?
Yes. In 2020, police identified Calvin Hoover through DNA evidence.
Did Morin receive compensation?
Yes. The Ontario government awarded him C$1.25 million.

References

  1. The Canadian Encyclopediahttps://www.thecanadianencyclopedia.ca/en/article/guy-paul-morin-case
    Supports: Background on the case, conviction, acquittal, public inquiry, and inquiry findings.
  2. Innocence Canada / Wrongful Convictions Canadahttps://www.wrongfulconvictions.ca/cases/guy-paul-morin
    Supports: Exoneration, compensation, apology, and later identification of Calvin Hoover.
  3. Library of Parliamenthttps://lop.parl.ca/sites/PublicWebsite/default/en_CA/ResearchPublications/202077E
    Supports: Morin case as a major Canadian wrongful conviction and the role of DNA evidence and the public inquiry.
  4. CBC Newshttps://www.cbc.ca/news/canada/morin-inquiry-slams-investigation-1.161599
    Supports: Inquiry findings about errors by scientists, police, and prosecutors, and the DNA-based clearing of Morin.
  5. Wikipediahttps://en.wikipedia.org/wiki/Guy_Paul_Morin
    Supports: Basic biographical details, pronunciation, and summary of the case.