A bomb disposal robot rolls towards Parliament Hill following the shootings. Photograph- Blair Gable:ReutersArmed RCMP officers guard access to Parliament Hill following a shooting incident in Ottawa, Canada, October 22, 2014.Armed RCMP officers head towards the Langevin Block on Parliament Hill. Photograph- Chris Wattie:ReutersPolice officers patrol downtown Ottawa, which was placed in lockdown amid a sweep for any other gunmen. Photograph- Lars Hagberg:AFP:GettyPolice take cover near Parliament Hill after the shootings. Photograph- Chris Wattie:ReutersThe Conservative party caucus room is shown with the door barricaded for safety, shortly after shooting began on Parliament Hill. Photograph- Nina Grewal:ReutersPolice and paramedics transport a wounded soldier after a shooting at the war memorial. Photograph- Michael Comte:AFP:Getty