A man killed his wife along with 30 elementary kids using bombs along with 8 other victims.
Moses Lake, Wash.
Two students and one teacher killed, one other wounded when 14-year-old Barry Loukaitis opened fire on his algebra class.
Four students and one teacher killed, ten others wounded outside as Westside Middle School emptied during a false fire alarm. Mitchell Johnson, 13, and Andrew Golden, 11, shot at their classmates and teachers from the woods.
May 19, 1998
One student killed in the parking lot at Lincoln County High School three days before he was to graduate. The victim was dating the ex-girlfriend of his killer, 18-year-old honor student Jacob Davis.
May 21, 1998
Two students killed, 22 others wounded in the cafeteria at Thurston High School by 15-year-old Kip Kinkel. Kinkel had been arrested and released a day earlier for bringing a gun to school. His parents were later found dead at home. http://www.cbsnews.com/2302-201_162-0.html