Photos: Deadliest school shootings in U.S.
May 21, 1998: Thurston High School May 21, 1998: Two teenagers were killed and more than 20 people hurt when Kip Kinkel, 17, opened fire at Thurston High School in Springfield, Ore., after killing his parents. Pictured: Spingfield, Oregon mug shot of Kip Kinkel, May 22, 1998. Credit: Getty
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