HUNTSVILLE, Ala. AP – When police finally tracked down Amy Bishop on the day she shot and killed her teenage brother in 1986, she was crouching behind a parked car, carrying a shotgun at waist level with one round in the chamber and a second in her pocket.

The details come from police reports released Tuesday, as law enforcement officials said there was probable cause to file weapons and assault charges against her at the time of the shooting at the family’s home in Braintree, Mass.