BARABOO, Wis. (AP) -- A 16-year-old Wisconsin boy goes on trial today for murder in the shooting death of his school principal.
Eric Hainstock is being tried as an adult and could get life in prison if convicted.
Prosecutors in Baraboo, Wisconsin, say the teen took guns to school last September because he was upset that Principal John Klang and other school officials hadn't done anything to keep him from being teased.
According to police, the teen admits he shot Klang three times after the principal tackled him in a hallway and wrestled him to the ground. Investigators say Hainstock told them he wanted to make people listen.
The D-A plans to introduce evidence that in the weeks before the shooting, the student threw a stapler at a teacher and said he was going to, quote, "laugh when everyone in this school gets hurt."
Defense lawyers plan to portray Hainstock as a bullied, immature child.