This Powerful Play-by-Play Shows What Happened Inside Canada's Parliament -- And How One Man Became a Hero

Want to take a step-by-step look at the heroism that stopped a gunman from rampaging through the halls of Canada's parliament building Wednesday morning?

Kevin Vickers, sergeant-at-arms of the House of Commons, walks Thursday Oct. 23, 2014 past the library where Michael Zehaf Bibeau was gunned down the day before, in Ottawa, Ontario. Zehaf-Bibeau killed a soldier standing guard at Canada's war memorial Wednesday, then stormed Parliament in an attack that was stopped cold when he was shot to death by Vickers. (AP Photo/The Canadian Press, Sean Kilpatrick)

Michael Zehaf-Bibeau, identified as the gunman in Wednesday's shooting in Ottawa, shot and killed a guard at a war memorial before entering parliament and shooting wildly, witness and authorities said.

But sergeant-at-arms Kevin Vickers was there to stop him.

Watch the National's breakdown of how Vickers put a fatal end to the shooting, from the first shots to the moment when Vickers told the hiding lawmakers, "I have engaged the suspect. The suspect is now deceased."

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