Police and firefighters work at the rear of a nightclub where a gunman shot and killed at least one person during the Parti Québécois victory rally on Sept. 5, 2012 in Montreal.Paul Chiasson/The Canadian Press
Parti Québécois Leader Pauline Marois is whisked off stage by her security team as she speaks to supporters in Montreal on Sept. 4, 2012.Paul Chiasson/The Canadian Press
Parti Québécois Leader Pauline Marois is removed from the stage by her security team as she speaks to supporters in Montreal on Sept. 4, 2012.Graham Hughes/The Canadian Press
Parti Québécois Leader Pauline Marois is surrounded by her security detail as she is whisked off stage during her speech to supporters in Montreal on Sept. 4, 2012.Graham Hughes/The Canadian Press
Parti Québécois Leader Pauline Marois’s speaks with her security team after being whisked off-stage following a shooting incident at the Montreal nightclub where she was celebrating her election victory on Sept. 4, 2012. >Christinne Muschi/Reuters
A screen grab of CBC television coverage shows Montreal police officers arresting a man outside the nightclub where Parti Québécois Leader Pauline Marois was holding her election victory celebration.
Police cordon off the rear outside a nightclub where a gunman shot and killed at least one person during the Parti Québécois victory rally on Sept. 5, 2012 in Montreal.Paul Chiasson/The Canadian Press
Police direct Parti Québécois supporters out of the Metropolis nightclubwhere a gunman shot and killed at least one person during the Parti Québécois victory rally on Sept. 5, 2012 in Montreal.CHRISTINNE MUSCHI/Reuters