With today's sentencing of T.J. Lane, look back at other major school shootings in U.S. history.
May 21, 1998: Two teenagers were killed and more than 20 people hurt when a teenage boy opened fire at Thurston High School in Springfield, Ore., after killing his parents. Kip Kinkel, 17, was sentenced to nearly 112 years in prison.
Library of Congress
iStock / amete
iStock / LawrenceSawyer
Wisconsin Dept. of Natural Resources
Enrique Castro-Mendivil / Reuters
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