Finck, who last saw Bourque at the Walmart about three weeks ago, said his friend was an outgoing guy who liked camping, hanging out with buddies and being the life of the party.

But Finck said he noticed changes in Bourque’s behaviour over the last year, particularly after he created a new Facebook page for himself in February and filled it with anti-police messages and conspiracy theories.

“I just want to know what was going through his head,” he said.

“What caused such a shift from the guy I knew?”