found this write up. i guess whoever wrote this got the info from the comments section.
"apparently one of the black dude's brothers beat one of the white dude's sisters up. I guess they figured the guys were guilty by association and wanted to go fight the two dudes at the taco place. The 3 guys that started the fight got or will be arrested (dude in the grey shirt that crashes into the counter got arrested at his high school for sure), there are no charges against the two other guys since they were defending themselves, and the dude in the jersey (the one that got rocked, hit twice in the jaw while he was down, then kicked twice) got his jaw wired shut."