Judge to rule on criminal responsibility of man charged in Montreal triple slaying
Psychiatrists found Arthur Galarneau was schizophrenic and unable to understand his actions during the triple homicide, leading to a ruling of not criminally responsible.
- On Jan. 22, 2026, Quebec Superior Court Justice Annie Émond in Montreal found Arthur Galarneau, 22, not criminally responsible, agreeing with a joint submission from Crown prosecutors and defence attorneys.
- Psychiatrists testified that Arthur Galarneau suffered schizophrenia with delusions, hallucinations, and psychotic symptoms that impaired judgment, first emerging when he was 16.
- Police records show the three victims were mother Mylène Gingras, 53, father Richard Galarneau, 53, and grandmother Francine Gingras-Boucher, 75, stabbed 212 times inside the Bélanger Street duplex.
- The Crown intends to seek high-risk offender status, which could impose tighter restrictions, Quebec Superior Court Justice Annie Émond ordered a psychiatric evaluation and set Feb. 23 for the next hearing, while Galarneau's lawyers will contest the designation.
- Family members had sought help and advanced a psychiatric appointment as symptoms worsened, a Crown psychiatrist reported Galarneau criticised the health system, while the judge noted he remains ill but shows some insight.
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40 Articles
Montreal Man Who Stabbed Parents, Grandmother, Declared Not Criminally Responsible
A Montreal man who stabbed his parents and grandmother to death has been declared not criminally responsible for the crime. The man, Arthur Galarneau, was 19 years old when he was charged with three counts of second-degree murder after Montreal police responded to a 9-1-1 call made on March 17, 2023, by Galarneau’s mother and found the three individuals had been stabbed to death. Quebec Superior Court Justice Annie Emond said she agreed with a j…
Montreal man accused in murder of parents, grandmother found not criminally responsible
Arthur Galarneau, 22, was impassive as Quebec Superior Court Judge Annie Emond issued her decision on Thursday, agreeing with a joint submission from the Crown and defence that had been presented during a two-day trial in December.
Suffering from schizophrenia, Arthur Galarneau was declared not criminally responsible for the murder of his parents and grandmother on Thursday due to mental disorders. After reaching this verdict, the court requested an assessment of his mental condition to determine whether he should be designated “high risk” as requested by the Crown.
A young man with schizophrenia was found not criminally responsible for the murder of his parents and grandmother in Montreal in 2023.
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