I'm not sure what the backstory on either of those guys are. I was mostly just mocking DA.I am hoping that there was a massive amount of backstory before taking bats to heads happened. I get that people are sick of the protests, and they should have wound down 2 months ago. That said, just going on the offensive like that is worse.
It is interesting what the lady doing the pepper spraying said at the end of that video though. She said "that's for every thing you fvcking did to me, bitch. Told you I would get you." Then the guy on the ground says "I'm sorry." That sounds like there's some history that led to that encounter.