MONTRÉAL - Quebec’s police watchdog has set up a command post in Montreal’s Côte-des-Neiges neighbourhood to find witnesses to a shooting that killed an officer and bystander.

Members of the independent watchdog, known as the Bureau des enquêtes indépendantes, were set to be at the command post until 2 p.m. ET to speak with people who saw gunfire erupt June 22 and may have captured video of the incident.