A jury has found Vincent Boucher guilty of first-degree murder in the death of his 28-year-old partner, Laurie Anne Grenier in December 2018.
Boucher received an automatic sentence of 25 years in prison without a chance at parole.
He was charged in the days following Grenier's death. Her body was found with signs of violence on it, in the couple's shared Saint-Jean-sur-Richelieu home on Bouthillier Street.
Boucher's judge-and-jury trial revealed he had stabbed her in a jealous rage before fleeing to Sainte-Adèle in Quebec's Laurentians region, where police later arrested him.
Boucher's lawyers argued he should be charged with manslaughter instead of first-degree murder because he was intoxicated at the time of Grenier's death.
It took the jury four hours to come to its verdict.