15 year old killed two of his classmates, Minnesota, psychiatrist testified the shooter was suffering from schizophrenia and heard a voice that urged him to kill one of the boys who was said to be a bully. Life in prison
Red Lake High School
March 21, 2005
16 year old kills his grandfather, four students, a teacher and a security guard. Then himself
Orange High School
August 8, 2006
N.C., a 19 year old opened fire outside his former high school, said to be obsessed with school massacres- sent and email to the principle of a different school warning of his attack.
West Nickel Mines School
October 2, 2006
32 year old man goes into an Amish school and takes 11 girls as hostage- 5 killed 6 wounded, Man killed himself
The deadliest shooting by a single gunman in the history of the U.S. 32 people killed. Killed himself.