I am saying this without reading this entire thread so I may be repeating something already said.
Even if this did happen, players don't belong in the stands and fans don't belong on the floor. Not saying it's ok to just punch someone, but that's the risk you take. If someone was (probably drunk) jumping in my face, I would get them away....
I watched the video...if someone can tell by that video that he is puncing a person, then you have a nice career ahead of you. People will look for anything to bash this team, and him in particular. I also find is hard to believe that there aren't more than a hand full of people that saw this if it did happen. I will say it again IF he did hit someone, stay off the dang court.