The gunman who murdered a soldier at Canada's national war memorial in Ottawa and stormed parliament before he was shot dead made a video recording of himself before the attack, police have said.
Royal Canadian Mounted Police commissioner Bob Paulson said the video was "persuasive evidence that Michael Zehaf-Bibeau's attack was driven by ideological and political motives".
Experts are conducting a detailed analysis of the video and Mr Paulson said it could not be released yet.
A knife carried by Zehaf-Bibeau was taken from his aunt's home in Mont Tremblant, Quebec, and police are looking into how he obtained the gun, which Mr Paulson said was old and uncommon. Police suspect he could have also hidden it on the property.
Mr Paulson said investigators also identified where he obtained his money for the car he bought and his pre-attack activities.
He said Zehaf-Bibeau, 32, had been employed in the oil fields in Alberta, saved his money and had access to a considerable amount of funds.
"The RCMP is confident we will have an authoritative and detailed account of the shooting, including a complete reconstruction of the heroic actions of those involved, in the weeks to come," said Mr Paulson. He said Ontario Provincial Police would investigate the shooting inside parliament.
Zehaf-Bibeau shot dead Corporal Nathan Cirillo, 24, who was assigned to the honour guard at the national war memorial. Zehaf-Bibeau was eventually gunned down inside parliament by the sergeant-at-arms of the House of Commons, Kevin Vickers.
The attack in Ottawa came two days after a man described as an "Isil (Islamic State)-inspired terrorist" ran over two soldiers in a car park in Quebec, killing one and injuring the other before being shot dead by police.
The man had been under surveillance by Canadian authorities who feared he had jihadist ambitions and seized his passport when he tried to travel to Turkey.
Unlike the attacker in the Quebec case, Zehaf-Bibeau was not being watched by authorities. But Mr Paulson said last week that Zehaf-Bibeau, whose father was from Libya, may have lashed out in frustration over delays in getting his passport.
Mr Paulson said his mother told police that her son had wanted to go Syria, but Susan Bibeau later denied that in a letter published by Postmedia News, saying her son told her he wanted to go to Saudi Arabia, where he could study the Koran.