<snip>
Bishop, 44, had been fighting the school for a year over a tenure denial, Anderson said in the phone interview from the family’s home. This was to be her last semester.
Bishop was involved in another shooting in 1986, when she shot and killed her brother, 18, in the family’s Braintree home. The shooting was ruled accidental, but yesterday Braintree police said the 1986 police report is missing and called the investigation “troubling.”
more here
http://www.bostonherald.com/news/regional/view.bg?articleid=1232734
Sounds like Bishop had some time to stew over the tenure denial, IMO.
Her husband sounds like every other relative, no matter how serious the accusation is. "But he is a such a good boy," or in this case "she is such a good girl."