Jacques McSween
McSween Gang
    Jacques McSween would  make waves in Montreal’s underworld as the leader of  a gang who waged war for control of the rackets in Montreal’s south-west. The group, known  as the  McSween  Gang, was primarily active in loansharking, extortion and armed robberies.

     McSween  and  his  brother  Pierre reportedly joined  the  Dubois Gang in the 1950s, after Pierre  allegedly  meeting  one of the Dubois brothers in  a  reform school, where  Pierre was serving  a  two year sentence for theft.

     The McSween brothers, Pierre McSween would  later tell police, worked  as truck hijackers, selling  the  stolen  goods  to the  Dubois Gang. The latter  would  also  allegedly  supply  the McSweens  with the weapons and stolen cars needed for the heists.
    McSween  and his bunch became unhappy with their shares from the hijackings  and  formed their own gang. Jacques became  the  undisputed  leader of  the group, with  other  members including  his brothers Pierre and André, Roger “Le Moineau” Létourneau, Gilles Roy, and Paul-Émile Lapointe.

     In the 1970s, a turf war broke out between the McSween Gang and the much largert Dubois Clan. The gangs shot at each other at every opportunity, with casualties piling on both sides.

     In mid-August, 1974, Jacques  McSween, his  brothers  Pierre  and André, Roger Létourneau, and several others allegedly surrounded Roger “Fon Fon” Fontaine, who ran the Dubois Gang’s operations in the area, and beat him severely.

     In early October, a Montreal  daily  newspaper  received  an  anonymous  letter  accusing  Jacques McSween  and several others in his gang of being responsible for the murder of  Raymond “Chapeau” Gagné, a reputed associate of Roger "Fon Fon" Fontaine, had been killed on September 30 in  a  Point-Saint-Charles bar.

     Jacques  McSween’s days  came  to  an  end on  October 5, 1974. He was  ambushed by  masked gunmen in front of his Longueuil home and riddled with bullets.

     Shortly  after the  murder, Jacques  McSween’s brothers  Pierre and  André left the rackets. When approached by police about the slaying, Pierre allegedly  accused  the  officers of being responsible for the incident. “It’s you who killed my brother!” he reportedly shouted.

     Two of  the  notorious Dubois brothers from St. Henri – Adrien and Jean-Guy – would be charged with Jacques McSween’s killing. Donald Lavoie, an admitted underworld hitman, would testify that he was the driver of the getaway van used in the slaying. The two men would be acquitted of all charges.