I watched those videos in the wrong order, and it looks like black jacket guy is just trying to pick a fight with some passer-by. Then I watched the first video and saw that passer-by (KTFO) guy was trashing the car.
Still doesn't make it right that he got KTFO. The guy who KTFO'd him was probably just trying to sucker-punch someone.
Here's a better vid showing black jacket guy trying to stop the trashing of the car. Dude has some serious cajones. http://www.youtube.com/watch?v=TawYaw9c-Us
Something we're going to be seeing from now on - in situations like this in first-world countries, everyone has a phone with video, or at the very least a camera. There are going to be TONS of arrests made from these videos. I wonder if that will have any affect on people committing casual crimes like this?