The Murder of Christine Jessop

Nine-year-old Christine Jessop disappeared from Queensville, Ontario, on October 3, 1984. Her death became one of Canada's most scrutinized murder investigations. Neighbor Guy Paul Morin was acquitted at one trial, convicted at a second, and fully exonerated in 1995 after DNA excluded him. A public inquiry exposed serious investigative and forensic failures. In 2020, Toronto police used genetic genealogy to identify Calvin Hoover, a family acquaintance who had died in 2015, as the source of crime-scene DNA.

A concise timeline

1. October 3, 1984
   Christine disappears

   She returns home from school and is later reported missing.

2. December 31, 1984
   Christine is found

   Her death is investigated as homicide.

3. 1985
   Morin is arrested

   A neighbor becomes the focus of the investigation.

4. 1986–1992
   Two trials produce opposite results

   Morin is first acquitted, then convicted after a Crown appeal and retrial.

5. January 1995
   DNA excludes Morin

   New testing leads to his acquittal and formal exoneration.

6. 1996–1998
   Kaufman Inquiry

   Ontario examines police, forensic, prosecution and disclosure failures.

7. October 2020
   Police identify Calvin Hoover

   Investigative genetic genealogy links the preserved DNA profile to a deceased family acquaintance.

A wrongful conviction

The case against Morin relied on circumstantial evidence, disputed jailhouse-informant testimony and problematic forensic interpretation. Tunnel vision encouraged investigators to interpret ambiguity as confirmation. DNA testing later demonstrated that the biological evidence did not come from him.

Morin's exoneration was not a technical escape from guilt. It was a factual correction grounded in DNA. The Kaufman Inquiry produced 119 recommendations concerning expert evidence, disclosure, informants and the handling of forensic material.

Genetic genealogy

Investigators preserved the unknown DNA profile after Morin was cleared. Decades later, genealogical analysis linked the profile to relatives and enabled police to build family trees. Conventional police work then tested the resulting hypothesis against relationships and historical access.

Toronto police announced that the DNA source was Calvin Hoover, who was 28 in 1984 and known to the Jessop family. Hoover died by suicide in 2015. Because he could not be interviewed or tried, the identification is a police conclusion supported by DNA, not a criminal conviction.

Two lessons from one file

The first lesson is the danger of constructing a case around a preferred suspect. The second is the value—and privacy complexity—of new forensic methods. Genetic genealogy can solve old crimes, but it uses information extending beyond the person who submitted a DNA profile.

The page calls the case solved by identification, while preserving the legal distinction that Hoover was never prosecuted. Christine's family received an answer about identity, but not a courtroom judgment.