An Alabama professor accused of fatally shooting three colleagues last week had previously admitted in court to punching a woman in a tirade over a booster seat at a Massachusetts restaurant.

Citing a police report, WBZ-AM and The Boston Globe both reported Tuesday that Amy Bishop was charged with assault after the incident in 2002 at the International House of Pancakes in Peabody.

The police report says Bishop became incensed when she found out the other woman had received the restaurant's last booster seat. Bishop hit the woman and shouted multiple times, "I am Dr. Amy Bishop," the report says.

The Globe and WBZ say Bishop received probation for the incident.

Peabody police didn't immediately immediately return a call from the Associated Press seeking comment.