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Police say gunman in Canada attack prepared a video recording of himself prior to attack

  • This image provided by the Royal Canadian Mounted Police shows and undated image of Michael Zehaf-Bibeau, 32, who shot a soldier to death at Canada's national war memorial Wednesday, Oct. 22, 2014 and was eventually gunned down inside Parliament by the sergeant-at-arms. (AP Photo/Vancouver Police via The Royal Canadian Mounted Police)

    This image provided by the Royal Canadian Mounted Police shows and undated image of Michael Zehaf-Bibeau, 32, who shot a soldier to death at Canada's national war memorial Wednesday, Oct. 22, 2014 and was eventually gunned down inside Parliament by the sergeant-at-arms. (AP Photo/Vancouver Police via The Royal Canadian Mounted Police)  (The Associated Press)

  • People attend a candlelight vigil at the Tomb of the Unknown Soldier at the National War Memorial in tribute of Cpl. Nathan Cirillo, 24, a reservist from Hamilton, Ontario, who was killed on Wednesday while guarding the tomb by a gunman, in Ottawa on Saturday, Oct. 25, 2014. (AP Photo/The Canadian Press, Justin Tang)

    People attend a candlelight vigil at the Tomb of the Unknown Soldier at the National War Memorial in tribute of Cpl. Nathan Cirillo, 24, a reservist from Hamilton, Ontario, who was killed on Wednesday while guarding the tomb by a gunman, in Ottawa on Saturday, Oct. 25, 2014. (AP Photo/The Canadian Press, Justin Tang)  (The Associated Press)

  • People attend a candlelight vigil at the Tomb of the Unknown Soldier at the National War Memorial in tribute of Cpl. Nathan Cirillo, 24, in Ottawa on Saturday, Oct. 25, 2014. (AP Photo/The Canadian Press, Justin Tang)

    People attend a candlelight vigil at the Tomb of the Unknown Soldier at the National War Memorial in tribute of Cpl. Nathan Cirillo, 24, in Ottawa on Saturday, Oct. 25, 2014. (AP Photo/The Canadian Press, Justin Tang)  (The Associated Press)

Canadian police say a gunman who shot and killed a soldier at the national war memorial and then stormed Parliament before he was gunned down had prepared a video recording of himself prior to Wednesday's attack.

Royal Canadian Mounted Police Commissioner Bob Paulson said in a statement Sunday that the video is "persuasive evidence that Michael Zehaf-Bibeau's attack was driven by ideological and political motives."

A detailed analysis of the video is being conducted. Paulson says they cannot release the video at this time.

Paulson says a knife carried by Zehaf-Bibeau was taken from his aunt's property in Mont Tremblant, Quebec, and they're looking into how he got his gun. Paulson called it an old, uncommon gun which police suspect he could have also hidden on the property.