HUNTSVILLE, Ala. - BRAINTREE, Mass. (AP) — Police say a University of Alabama professor accused of fatally shooting three colleagues at a faculty meeting this week shot her younger brother dead in Massachusetts more than 20 years ago — but records of it are missing.

Police Chief Paul Frazier says Amy Bishop shot her brother in the chest in 1986 in the Boston suburb Braintree. He says Seth Bishop’s shooting was logged as an accident but detailed records of it have disappeared.

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Frazier says people who worked for the police department then remember the incident. He says before Amy Bishop could be booked the police chief back then told officers to release her to her mother.

A University spokesman says Bishop had been denied tenure before she was held Friday in a shooting at the Huntsville campus. As Bishop was being taken to jail she said: “It didn’t happen. There’s no way.”