The woman was attacked in a parking garage on Cavendish Boulevard at around noon on Tuesday. Officers found the woman lying on the ground in the parking lot of a building, situated at 6000 Cavendish Boulevard, near Chemin Louis-Pasteur. She was taken to the hospital in critical condition.
On Friday, police are setting up a command post in Côte St-Luc, asking anyone with information to go to 6000 Cavendish Boulevard, or to call police at 514-393-1133.
Montreal police spokesman Jean-Pierre Brabant says they've created the composite sketch based on footage and information gathered during the preliminary stages of the investigation.