One year ago he lost his life standing guard at the National War Memorial.
There are two important lessons learned from last years terror attack in the Canadian capital:
A) The terrorists continue to attack us on our own territory,
B) If you are carrying a weapon, it makes no sense for it not to be loaded, and
It is true that the terrorist was a self-recruited local. However, it is also true that this is also besides the point; it merely points to the effectiveness of the enemy's tactics, which include unorthodox recruiting and training techniques. It is also most likely that the outcome would have been the same if Corporal Cirillo was fully armed, but I'd say its a safe bet that nowadays honor guards at monuments in North America are carrying loaded weapons.
It is also significant to note that Canada is an unarmed population; they have no 2d Amendment. Fortunately there was an armed individual within the Parliament building who could resolve the situation before more lives were taken. This leads to a third important lesson learned:
C) To stop a terrorist / mass murderer (i.e. "active shooter"), an individual armed with a gun is required.
We can't seem to get away from that.