by a big black dude. The guy he threw the haymaker at was nowhere around. The haymaker he throws later was a random drive by. That's called mayhem, and it's ugly and it's not excusable in the least. He's getting while the getting's good, like the rioters in Ferguson.
http://espn.go.com/video/clip?id=12068783&ex_cid=sportscenterTW
Also note that this happens right in front of Bronco.