How did Julian treat Auggie after he began attending Beecher Prep?

Julian called Auggie names and initiated a game he called the plague. If a student touched Auggie, he would have to wash his hands or he would die. Things escalated when a student punched Julian in the face after he made a hateful comment about Auggie. Julian continued to escalate tensions by putting notes in Auggie’s locker suggesting that Auggie’s mother regretted having him and that he should die.