With the main charge, a felony, being dropped so soon, and some tidbits posted in this thread, it looks like the kid really got screwed by the cop or cops on the scene and whomever charged him.
This is the argument for having all charges dropped: All charges should now be dropped immediately, because the cop/prosecutor goofed up by charging him, and definitely over-charging him with felony assault. Bad investigation and bad decision to charge. As for the other stuff, the kid walked around the corner. From the video, that appears to be the resisting arrest.
Again, the argument: the kid shouldn't be charged with walking off, i.e. resisting arrest, when the other guys were the aggressors, and the on-scene cop goofed up the early investigation by talking only to the other kids' friends. Resisting arrest (walking around the corner) after a false arrest and incorrect charge?
Hope the kid has a good attorney. They ought to back down the prosecution quickly. This is bogus. The already-dropped felony charge and press has done the kid life-long damage to his reputation, with the bad press that will be on the internet forever. The only way to start making this up to the kid is for all charges to be dropped quickly.
The kid was drunk and got into a fight. Suspend him for a game.
For being drunk, the kid is pretty articulate and comes across fairly well in the video. He's completely believable, I think, and wasn't acting like an asshole at all.
This type of rush to judgement and over-charging used to happen mainly to people of color. Now it seems to be happening to athletes, at least on occasion. Our society is getting out of control, in my opinion, with stuff like this. Jeez, law enforcement needs to do a good investigation and be careful with charges, and stop giving inflammatory stuff to the press; and the press needs to stop over-sensationalizing.