People posted his Facebook profile which was covered in anti-cop groups. The most notable was Cop Block which started as a group denouncing examples of police brutality and abuse of power. However, the people on the page started to confuse the original message with 'All cops are the worst people and they deserve to die". It's the popular theory that he was a that type of individual. What made him snap though is still a mystery.BathorysGraveland2 said:But yeah, I'm eager to learn of the motive.
Mental illness won't be a good defence since he had illegal firearms in Canada, he didn't shoot anyone randomly and he gave up saying "I'm done". The first two shows that he planned this and the latter is a mystery. If he was doing the latter to prove the point of the Cop Block page which would be police brutality, he just got proven wrong since he wasn't hit or killed during the arrest.