April 16th, 1999: A high school pupil fired two shotgun blasts in a school hallway in Notus, Idaho. No one was injured in the attack.
May 21st, 1998: Two teenagers were fatally shot and more than 20 people hurt when a 15-year-old boy allegedly opened fire at a high school in Springfield, Oregon. His parents were later found dead at home. The boy is awaiting trial.
May 19th, 1998: Three days before his graduation, an 18-year-old pupil allegedly opened fire in a car park at a high school in Fayetteville, Tennessee, killing a classmate who was dating his former girlfriend. He is awaiting trial.
April 24th, 1998: A science teacher was shot dead in front of pupils at a graduation dance in Edinboro, Pennsylvania. A 14-year-old pupil is awaiting trial.
March 24th, 1998: Four girls and a teacher were shot dead and 10 people wounded during a false fire alarm at a middle school in Jonesboro, Arkansas, when two boys, aged 11 and 13, opened fire from the woods. Both were convicted of murder and can be held until they are 21.
December 1st, 1997: Three students were killed and five others wounded in a hallway at Heath high school in West Paducah, Kentucky. One girl was left paralysed. A 14-year-old pupil pleaded guilty but mentally ill to murder and is serving life in prison.
October 1st, 1997: A 16-year-old boy in Pearl, Mississippi, was accused of killing his mother, and then going to his high school and shooting nine pupils, two fatally. He was sentenced to life in prison. Two others await trial on accessory charges.