JUDY KUCZYNSKI: "Our daughter was a very outgoing child. She was a bubbly personality, very involved in all kinds of things, had lots of friends. And over a period of time her grades fell completely. She started having health issues. She couldn't sleep. She wasn't eating. She had terrible stomach pains. She started clenching her jaw and grinding her teeth at night. Didn't want to go to school."

Bullying is defined as negative behavior repeated over time against the same person. It can involve physical violence. Or it can be verbal -- for example, insults or threats.