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A police officer takes a photo of a vehicle, top, inside police tape outside Center Block on Parliament Hill in Ottawa, Ontario, Wednesday, Oct. 22, 2014. A gunman with a scarf over his face shot to death a Canadian soldier standing guard at the nation's war memorial Wednesday, then stormed Parliament in a hail of gunfire before he was killed by the usually ceremonial sergeant-at-arms, authorities and witnesses said. (AP Photo/The Canadian Press, Justin Tang/The Canadian Press/AP)
A police officer takes a photo of a vehicle, top, inside police tape outside Center Block on Parliament Hill in Ottawa, Ontario, Wednesday, Oct. 22, 2014. A gunman with a scarf over his face shot to death a Canadian soldier standing guard at the nation's war memorial Wednesday, then stormed Parliament in a hail of gunfire before he was killed by the usually ceremonial sergeant-at-arms, authorities and witnesses said. (AP Photo/The Canadian Press, Justin Tang/The Canadian Press/AP)

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