Officers said the victim was riddled with bullets as he left his vehicle shortly before 8 p.m. yesterday, in the Lanaudière region.
A spokesperson for the Quebec provincial police said municipal police originally responded to a report of shots being fired yesterday evening.
Police found the victim's body lying outside a residence near the intersection of Fontaine and Payette streets.
The investigation was handed over to Sûreté du Québec.
Authorities have confirmed the victim was known to police.