At first sight, it would be a spousal crime, according to the Sûreté du Québec.
The Sûreté du Québec (SQ) crimes against the person team is investigating two suspicious deaths in Sainte-Marthe-sur-le-Lac, in the Laurentians.
On Wednesday around 11:45 p.m., the Lac des Deux-Montagnes intermunicipal police board was called to intervene in a residence on rue des Mélèzes, in Sainte-Marthe-sur- Lake.
Upon arrival, officers located an injured 70-year-old man and an unresponsive woman in her 30s. She was pronounced dead at the scene.
Soon after, a 42-year-old man was found seriously injured in a vehicle near the home. The man was taken to hospital, where he succumbed to his injuries.
Two children who were inside the residence were entrusted to the DPJ.
An SQ spokeswoman said the police force was not looking for a suspect. She also confirmed that the case appeared to be related to a spousal crime.