This is so sad. JMO the school is not handling this properly.
I realize that in the world today, teachers are limited in the ways discipline can be handled. However, the school can't be filled with that many weak teachers or the students would be running the school. So it goes to the principal and assistant principal who are not guiding their teachers.
We wonder what has happened to our country. Well, this is a good indication of how kids are allowed to torment a child early in life without any consequences. For some, it may be just follow the leader and do what they see a known bully in the school doing. However, for many, it is the beginning of a life pattern they develop, unfortunately.