That's actually a really interesting link. I see severe escalation that sounds like the result of a poor police response. It started with graffiti and a broken window. More than a week later:

"Portland Police were forced to deploy crowd control spray to disperse a crowd that was throwing animal seed at officers."

Really? They were forced to use pepper spray or tear gas because they were being pelted with animal seed? Poor babies. It must have stung. This is precisely why there are protests to begin with. The police in America only escalate. They do not know how to de-escalate. It did eventually get to fire and hammers, but let's look hard at how it got there. If you escalate a fight, expect to get hit.