So this happened a couple years before I went there, but this was the talk of my high school for like half a decade and half the town knew folks involved so it just became town lore.
There was a special needs kid who was loved by our school and our community. He was always smiling and happy, and while only ever really talkative when it was about his own interests you couldn't help but like the guy and get along with him. Even bullies were kind to the kid, and while some people avoided him no one was ever rude or dismissive towards him. Just a genuinely good kid who was liked by all cause you couldn't help but like him.
He got beaten up by a bully who came to our school from the really f****d up last chancer school a few suburbs over.
Word got out when someone saw him in the infirmary bruised to the nines and crying. Dumbass bully took credit but really didn't need to since there were witnesses and word got around pretty quickly.
A dozen seniors cornered him after school when the bully was walking home and took turns beating the s**t out of them, apparently they almost killed him. Never saw him again after that so I've no idea what happened, I just know he got hospitalised for ages. No one was willing to rat them out, and the teachers and overworked cops didn't really seem too fussed in finding out who got rid of the bully.
The friendly kid came back a few weeks later all healed up and everything continued as normal.