On 22 October 2014, Michael Zehaf-Bibeau fatally shot reservist Corporal Nathan Cirillo as he stood as an Honour Guard at the National War Memorial. After shooting Cirillo, Bibeau advanced towards the Parliament buildings, where caucus meetings of the main political parties were being conducted. He shot a guard in the leg and was chased down the Hall of Honour past rooms where Members of Parliament (MPs) were meeting. The MPs barricaded the doors as a violent gunfight ensued. Bibeau was shot dead by House of Commons Sergeant-at-Arms Kevin Vickers in the Hall of Honour of the Centre Block.