Teacher dies after school shooting
The deputy head gunned down by a pupil during a school shooting rampage has lost her fight for life.
Vicki Kaspar, 58, vice principal of Millard South High School in Omaha, Nebraska, was mortally wounded on Wednesday when policeman's son Robert Butler opened fire, forcing terrified pupils returning from the Christmas break to take cover in the kitchen.
Butler, 17, who had attended the school for no more than two months, also wounded principal Curtis Case, 45, before fleeing and shooting himself dead in his car.
Butler's father is an Omaha Police Department detective and investigators were interviewing him to learn more about what may have led to the shooting.
Authorities refused to speculate about why Butler targeted the administrators.
Ms Kaspar died in hospital hours after the shooting, police said. Mr Case was said to be in a stable condition.
Jessica Liberator, a second-year student at Millard South, said she was in the cafeteria when another administrator "rushed in to tell everybody to get in the back of the kitchen". She said she started to cry when students heard a knock on the kitchen door and a cafeteria worker yelled for everybody to get down, but it was a false alarm.
Butler had transferred in November from a high school in Lincoln, south west of Omaha.
In a rambling Facebook post filled with expletives on Wednesday, Butler warned that people would hear about the "evil" things he did and said the school drove him to violence.
He wrote that the Omaha school was worse than his previous one and that the new city had changed him. He apologised and said he wanted people to remember him for who he was before affecting "the lives of the families I ruined". The post ended with "goodbye".