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Open Image ModalAn Ottawa police officer runs with his weapon drawn, outside Parliament Hill in Ottawa, on Oct. 22, 2014. (credit:AP Photo/The Canadian Press, Sean Kilpatrick)
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Open Image ModalRCMP intervention team members clear the area at the entrance of Parliament Hill in Ottawa, Oct. 22, 2014. (credit:AP Photo/The Canadian Press, Adrian Wyld)
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Open Image ModalPolice and paramedics tend to a soldier shot at the National Memorial near Parliament Hill in Ottawa on Oct. 22, 2014. (credit:AP Photo/The Canadian Press, Adrian Wyld)
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Open Image ModalPolice teams enter Centre Block at Parliament Hill in Ottawa on Oct. 22, 2014. (credit:AP Photo/The Canadian Press, Justin Tang)
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Open Image ModalOttawa police patrol along the Elgin St. steps near the National War Memorial in Ottawa, Canada, Oct. 22, 2014. (credit:Mike Carroccetto/Getty Images)
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Open Image ModalRCMP and Ottawa police cruisers on Wellington St. stand guard after a shooting at the National War Memorial near the Canadian Parliament Oct. 22, 2014. (credit:Mike Carroccetto/Getty Images)
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Open Image ModalOttawa police direct traffic on Elgin St. near the National War Memorial, Oct. 22, 2014. (credit:Mike Carroccetto/Getty Images)
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Open Image ModalAn Ottawa police officer stands guard on Wellington St. after a shooting occurred at the National War Memorial near the Canadian Parliament Oct. 22, 2014. (credit:Mike Carroccetto/Getty Images)
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Open Image ModalAn Ottawa police office draws her weapon outside Parliament Hill in Ottawa on Oct. 22, 2014. (credit:AP Photo/The Canadian Press, Sean Kilpatrick)
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Open Image ModalPolice teams move towards Centre Block at Parliament Hill in Ottawa on Oct. 22, 2014. (credit:AP Photo/The Canadian Press, Justin Tang)
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Open Image ModalAn Ottawa police officer runs with his weapon drawn outside Parliament Hill in Ottawa on Oct. 22, 2014. (credit:AP Photo/The Canadian Press, Sean Kilpatrick)
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Open Image ModalAn Ottawa police officer runs with his weapon drawn outside Parliament Hill in Ottawa on Oct. 22, 2014. (credit:AP Photo/The Canadian Press, Sean Kilpatrick)
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Open Image ModalPolice secure an area around Parliament Hill in Ottawa on Oct. 22, 2014. (credit:AP Photo/The Canadian Press, Adrian Wyld)