Here's some videos of that. I can't tell if the guy with the rifle is on the protestor or "guarding property" side (I understand there have been clashes among protestors). I can tell that the protestors who chased him down looked kinda surprised when he shot them. It seems those people can't process what a firearm can do. Maybe it will be a wakeup call to other protestors that they are not invulnerable and free to destroy things or hurt whomever they want.
Also, in one of the other videos at the URL, some of the people guarding property really need to get out of condition white (is that racist?).
https://www.foxnews.com/us/kenosha-police
Watch that video closely. They are chasing him and he is almost out of cardio capacity. He trips and as soon as he's on the ground the mob swarms. One tries a laser, one tries a football kick to the head, and one grabs the dropped rifle off the ground.
The guy being attacked (whatever he may have done to start this, he was being attacked here) retains his weapon only because it was slung, uses the sling to get the gun back and defends himself. As soon as they back up, he get's up and heads for the cops where he slings the weapon behind his back and approaches with his hands up trying to talk to them, at which point multiple cop cars just drive by and leave him at the mercy of the crowd.
There's some AAR comments to be had from this. Weapons retention is vital. Without that sling he'd have been defensless and armed his attackers. Don't be on the ground. If you fall, clear a space and get up as quick as possible. Don't count on the cops to stop and help you in the midst of a riot, or even take you into custody. You are on your own.