Extraordinary claims require extraordinary evidence.
Extraordinary enough? A birds eye view, of a protest that was peaceful for hours, until police grab for an umbrella, and start attacking the crowd.
Here's an ant's eye view of the same event, by the way. @26:30 - the gas masks arrive, @28:20 - the gas masks take their place in the line, @30:00 - the umbrella gets grabbed, and the crowd gets attacked.
https://m.facebook.com/story.php?story_fbid=1022002103584874...
Since 2001, police have taken more American lives than all other terrorist activities combined.
Supporting protestors and civil unrest doesn't mean you support violence, but I'm not a naive child that thinks great change happens without bad things accompanying it.