The reactions varied as you can imagine. They were about as different as every child's personality. But we were also touched by the concern of many. We listened as they approached the teacher and expressed concern for Jonathan's behavior. They felt he must really be hurting inside to be taking out so much frustration on them.
Bullies really do have low self-esteem.
If there is something about themselves they don't like, they feel that by putting you down, and teasing you, they are distracting from their own problems. Bullies are also angry. Most likely they were also bullied at some point. Also in question would be the negative influence of peers, caretakers who may have abused or enabled them, and exposure to violence in the media. Try confronting them and telling them how they are making you feel.