Yeah. The riots were very major, and taken a bit too far. But besides the first car being lit on fire, most of the extremist, anarchist acts such as vandalizing and looting were committed by small groups of organized protestors who "take advantage when protests occur". The same thing happened in the G20 summit in Vancouver, and the Olympic protests, in which these groups of anarchists were spotted, notoriously wearing black masks, black outfits. It's being questioned.