Slap:
It was reported that he held dual citizenship. Canadian and Libian. And he wanted to get his passport back to go to Syria!
The Canadian press report he was in Ottawa, as additional questioning was required to get a passport - which had not been issued. apparently as CSIS / RCMP had information he intended to travel to Syria.

In the earlier murder by vehicle the suspect's passport had been seized, due to his intention to travel abroad. He had been the subject of extensive intervention, by a Muslim Imam and other agencies - which may lead to a review, at least a rethink. Failure to respond to intervention is not uncommon in law enforcement.