Oh, so the 'debunking' is not on whether or not an attempted mass murder/arson occurred, but that there is no "direct linkage" between the occupation and the crime.
What that likely means is that they don't know who the people in the video are. It seems pretty likely to me that it's related to the occupation, especially since there was a 'confrontation' earlier that day with residents of the building. It's not like buildings are burnt down in Ottawa every day.
That's great that it "seems pretty likely" to you, but that doesn't seem to be the case. Unless you have concrete information which the OPS doesn't have, I don't think speculation is very useful here.
In the country I grew up in, trying and failing to commit crimes is still a crime. The act itself is the crime, not the success of it. Unfortunately these days it seems like the better determinant of whether something is a crime is someone's political affiliation.
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.
"We don’t have any direct linkage between the occupation—the demonstrators—and that act." [1]
[1]https://www.cpac.ca/episode?id=fa5721d6-af8b-48d9-9848-73dcf...