The University of Alabama biology professor accused of slaying three of her colleagues fatally shot her brother in an apparent accident in Massachusetts more than two decades ago, a local police chief said.

Braintree Police Chief Paul Frazier confirmed the 1986 shooting in his town and slated a news conference this afternoon to discuss the incident.

The Globe reported at the time that Amy Bishop had shot her 18-year-old brother, Seth M. Bishop, an accomplished violinist who had won a number of science awards.