Other deadly campus and classroom shootings

The following are some other fatal shootings that took place at U.S. and Canadian schools, colleges or universities.

April 2: At the University of Washington, stalker Jonathan Rowan shot and killed ex-girlfriend Rebecca Griego in her office before turning the gun on himself.

Oct. 20, 2006: Charles Carl Roberts walked into a one-room Amish schoolhouse in Nickel Mines, Pa., taking hostages before eventually killing five girls and himself.

March 21, 2005: Jeffrey Weise, a student at Red Lake High School in Red Lake, Minn., killed seven people at the school, including a teacher and a security guard. Earlier, he killed his grandfather and his grandfather's partner.

April 20, 1999: Students Eric Harris and Dylan Klebold went on a shooting spree at Columbine High School in Littleton, Colo. The pair killed 12 fellow students and a teacher and wounded 24 others before committing suicide.

May 20, 1998: Kip Kinkel, a student at Thurston High School in Springfield, Ore., began shooting. Two students were killed and 25 injured before classmates subdued him.

Dec. 1, 1997: Michael Carneal, a 14-year-old student at Heath High School in West Paducah, Ky., targeted a youth prayer group at the school, shooting eight people, three of them fatally.

Nov. 1, 1991: Gang Lu, 28, a graduate student in physics from China, opened fire in two buildings on the University of Iowa campus. Five University of Iowa employees were killed before he shot himself.

Dec. 6, 1989: Marc Lépine entered a classroom at Montreal's l'École Polytechnique engineering school, separated the men from the women and told the men to leave. Lépine then opened fire, killing 13 female students and a college employee, and injuring 13 others before committing suicide.

Aug. 1, 1966: Charles Whitman pointed a rifle from the observation deck of the University of Texas at Austin's Tower and began shooting. Sixteen people were killed, 31 wounded.