Corporal Denis Lortie enters the Quebec National Assembly and opens fire, killing three people and wounding 13. René Jalbert, Sergeant-at-Arms of the assembly, succeeds in calming him, for which he will later receive the Cross of Valour.

Denis Lortie (born March 10, 1959) is a former Canadian Forces corporal. In 1984, he stormed into the Parliament Building in Quebec City and opened fire with several firearms, killing three government employees and wounding 13 others. The National Assembly's sergeant-at-arms, René Jalbert, volunteered himself to serve as a hostage, and conversed with Lortie for several hours before convincing him to surrender to authorities. After a 1985 conviction of first-degree murder was overturned by the Quebec Court of Appeal, Lortie pleaded guilty to reduced charges of second-degree murder in 1987, for which he was convicted and sentenced to life imprisonment with no parole for ten years. Lortie was granted day parole in 1995, then full parole in 1996, and has since kept a low profile among the general public.