Jury selection is underway in the trial of a man charged with the sexual assault and murder of a 19-year-old Quebec junior college student nearly 24 years ago. Guylaine Potvin, shown in a Surete du Quebec handout photo, was found dead in her apartment in Jonqui猫re, Que. on April 28, 2000. THE CANADIAN PRESS/HO-Surete du Quebec **MANDATORY CREDIT**
Jury selection is underway in the trial of a man charged with the sexual assault and murder of a 19-year-old Quebec junior college student nearly 24 years ago. Guylaine Potvin, shown in a Surete du Quebec handout photo, was found dead in her apartment in Jonqui猫re, Que. on April 28, 2000. THE CANADIAN PRESS/HO-Surete du Quebec **MANDATORY CREDIT**
MONTREAL - Jury selection began Monday in the trial of a man charged with the sexual assault and murder of a 19-year-old Quebec junior college student nearly 24 years ago.
Marc-Andr茅 Grenon is charged with the first-degree murder and aggravated sexual assault of Guylaine Potvin, who was found dead in April 2000 in her apartment in Jonqui猫re, some 215 kilometres north of Quebec City.
Grenon was present at the courthouse in Chicoutimi Monday and pleaded not guilty to the charges.
Superior Court Justice Fran莽ois Huot told potential jurors that the trial is expected to last about five weeks, and will include testimony from 11 Crown witnesses.
The case is expected to shed light on the forensic techniques that led police to arrest Grenon in 2022, more than two decades after the killing.
Huot said Potvin's body was found on April 28, 2000, in the basement apartment where she lived, mostly unclothed and bearing multiple injuries. An autopsy would conclude that she'd been strangled and sexually assaulted, and scene analysis suggested the assault began while the victim slept, he said.
The judge said investigators were able to build a full male DNA profile from bodily substances left at the scene, including on a belt, but the profile did not match anyone in the database.
It was only decades later that a "particular scientific technique" led investigators to hone in on the Grenon surname, which eventually led to the suspect's arrest after DNA from two straws he used were linked to a sample collected at the crime scene, Huot said.
"The analysis of a forensic biologist then allows us to conclude that the genetic profile obtained on the straws in question is associated with that found 22 years earlier at the crime scene," he said.
The allegations have not been proven in court.
This report by 好色tvwas first published Jan. 15, 2024.
The 好色tv Press. All rights reserved.
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