That's fine, you have every right to your suspicions, but unless you feel you have better information about the incident than the police that investigated it, I'm not really sure what your comment adds. The GP made the claim that protestors in Ottawa tried to burn a condo down and a quote from the police chief proves this to be false.
This is one of several accounts I use because my personal identity is tied to my main account, and accusations like the above concern me when I know there are vigilantes out there who find joy in doxing people with different political leanings than them. Rest assured I've been a member of this community since 2014, I'm not one of the dreaded "alt-right trolls" some users are so comically paranoid of.
On that note, I'm not really sure what's alt-right about repeating a quote from an investigating officer, but then again, most people who use that phrase aren't being intellectually honest anyway.