A teenager accused of gunning down his school head told Wisconsin detectives in a videotaped interview that he did not mean to kill him but “freaked out” when the principal tackled him in a school hallway.

A teenager who decided to confront teachers and the headmaster after complaining that other students teased him, took two guns to school and shot the headmaster to death, United States authorities said today.

A STUDENT walked into a rural American school with a gun yesterday and shot the principal several times before he was taken into custody. All the children were reported safe.