Frustrated with principal's passivity...
Essentially he allows the Latino students & parents to walk all over him after merely suspending three students for having committed a pretty serious assault & battery on a single student. That, combined with the leader's public use of a racial epithet, made a pretty strong case for a hate crime.
I like to think, had it been me, I would have apologized sincerely to the parents for suspending the students, while promising next time, to call the police & watch them all get carted off to jail instead.
Certainly if I'd been a parent of the student who was attacked, that's what I'd want.
There's no way, in the world at large, three guys can jump a fourth, beat the crap out of him in front of witnesses and, after telling the cops their target had been harassing a female peer, expect the cops would say "okay dokey" & let them walk free. Maybe a judge would take that kind of provocation into account when sentencing, but that's about it.
Yeah, the principal ought to followed up on what the leader claimed about harassment of the girl, but without her reporting it directly, what's he supposed to do?