Pictured: Gunman Who Started Shooting In Canadian Parliament

Just moments after he gunned down Canadian Parliament shooter Michael Zehaf-Bibeau, heroic sergeant-at-arms Kevin Vickers was seen calmly walking through the halls, gun in hand. The 58-year-old RCMP veteran has been hailed a hero after putting a swift stop to the attacker's hail of gunfire after he shot dead a soldier and then stormed the building on Wednesday morning.