My friend got into a fight and it was wack

My friend went to his new school that he got expelled from and he's already gotten into a fight. Its city school so it's not surprising but when everyone over here saw the newly posted videos, we all flipped. He was super tall for being a freshman and hadn't lost many fights before but he lost this one bad. He's okay but it was also so unfair like the guy pulled his hoodie sleeve and like hit him from behind in the back of the head LIKE EVERYONE IS SO MAD!! Even though this guy gets into fights hes such a goofy friend that looks out for people a lot its just so shitty.