万花筒 2009-03-11&03-12 公车司机遭殴打录像（在线收听）

Two different views aboard this Kalamazoo public school bus. A 16-year-old student from Valley Center school, comes from the back.

"I'm not the one to play well and not your...Go ahead!"

You can hear the teen threatening the bus driver. Police say he was upset with how the substitute driver was performing her duties: stopping too often. She pulls over and the attack begins.

The driver was seated and you couldn't describe it as anything other than a defenseless position. He was a couple of feet over the top of her.

Police say other students made attempts to pull the suspect off the driver. It took three tries, the driver calls for help.

"But she has some severe contusions, lacerations, bruises to her face and one of her fingers is broken."

The suspect then gets off the bus and runs.

At home, we spoke with Mom, Lisa. she doesn't know what triggered her son to snap.

"I'm just trying to figure, was it something that really set him off, to make him go on that rage like he did yesterday."

Lisa says her son has some mental problems. He is bipolar. He's been hospitalized before. But she says he has never been violent like this. She says her first reaction was to call the transportation office to make sure the driver was OK. She is still trying to put it all together now and figure out what happened.

"Right now, I just keep, continue to pray for the bus driver and my son. You know, I don't  condone what he do, everybody may disagree with what he do, but I want my son to know that I love him."