SAN DIEGO (AP) — California authorities say a man suspected of abducting a 16-year-old family friend after killing her mother and younger brother opened fire once or twice with a rifle before he was killed by FBI gunfire in the Idaho wilderness.

San Diego County Sheriff Bill Gore said Monday that Hannah Anderson was under "extreme duress" from the time she abducted. She didn't learn that her mother and brother were killed until she was rescued Saturday.

Gore says the girl is recovering with family in San Diego. Hannah's father, Brett Anderson, says his daughter faces a long recovery. He thanked the horseback riders who reported seeing them to the authorities.