Vilnius school massacre
Vilnius school massacre
May 6, 1925
Vilnius
Cologne school massacre
June 11, 1964
Cologne
University of Texas Tower Shooting
July 31, 1966
University of Texas at Austin
University of Texas Tower Shooting
Aug. 1, 1966
University of Texas at Austin
St. Pius X High School shooting
Oct. 27, 1975
St. Pius X High School
49th Street Elementary School shooting
Feb. 24, 1984
South Los Angeles
Hungerford massacre
Aug. 19, 1987
Hungerford
École Polytechnique massacre
École Polytechnique massacre
Dec. 6, 1989
École Polytechnique de Montréal
Lindhurst High School shooting
May 1, 1992
Olivehurst
Aarhus University shooting
Aarhus University shooting
April 5, 1994
Aarhus
Richland High School shooting
Nov. 15, 1995
Lynnville
Dunblane school massacre
March 13, 1996
Dunblane
Columbine High School massacre
April 20, 1999
Columbine High School
shooting of Kayla Rolland
Feb. 29, 2000
Buell Elementary School
Osaka school massacre
June 8, 2001
Ikeda Elementary School
Erfurt massacre
Erfurt massacre
April 26, 2002
Gutenberg-Gymnasium Erfurt
Red Lake massacre
March 21, 2005
Red Lake
2006 Roseburg High School shooting
Feb. 23, 2006
Roseburg High School
Amish school shooting
Oct. 2, 2006
Bart Township
Emsdetten school shooting
Nov. 20, 2006
Emsdetten
Virginia Tech shooting
Virginia Tech shooting
April 16, 2007
Virginia Tech
Jokela school shooting
Nov. 7, 2007
Jokela High School
Kauhajoki school shooting
Kauhajoki school shooting
Sept. 23, 2008
Kauhajoki
Winnenden school shooting
Winnenden school shooting
March 11, 2009
Wendlingen am Neckar
Winnenden school shooting
Winnenden school shooting
March 11, 2009
Winnenden
Winnenden school shooting
Winnenden school shooting
March 11, 2009
Albertville-Realschule
Nanping school massacre
Nanping school massacre
March 23, 2010
Nanping
Chardon High School shooting
Feb. 27, 2012
Chardon High School
Oikos University shooting
Oikos University shooting
April 2, 2012
Oikos University
2014 Moscow school shooting
2014 Moscow school shooting
Feb. 3, 2014
Q4339948
2014 Moscow school shooting
2014 Moscow school shooting
Feb. 3, 2014
School No. 263
Marysville Pilchuck High School shooting
Oct. 24, 2014
Marysville Pilchuck High School
Umpqua Community College shooting
Umpqua Community College shooting
Oct. 1, 2015
Umpqua Community College
La Loche shootings
La Loche shootings
Jan. 22, 2016
La Loche Community School
Rancho Tehama Reserve shootings
Rancho Tehama Reserve shootings
Nov. 13, 2017
Tehama County
Rancho Tehama Reserve shootings
Rancho Tehama Reserve shootings
Nov. 13, 2017
Rancho Tehama Reserve
Rancho Tehama Reserve shootings
Rancho Tehama Reserve shootings
Nov. 13, 2017
Tehama County
Rancho Tehama Reserve shootings
Rancho Tehama Reserve shootings
Nov. 13, 2017
Rancho Tehama Reserve
Rancho Tehama Reserve shootings
Rancho Tehama Reserve shootings
Nov. 14, 2017
Tehama County
Rancho Tehama Reserve shootings
Rancho Tehama Reserve shootings
Nov. 14, 2017
Rancho Tehama Reserve
Rancho Tehama Reserve shootings
Rancho Tehama Reserve shootings
Nov. 14, 2017
Tehama County
Rancho Tehama Reserve shootings
Rancho Tehama Reserve shootings
Nov. 14, 2017
Rancho Tehama Reserve
Aztec High School shooting
Dec. 7, 2017
Aztec High School
Marjory Stoneman Douglas High School shooting
Marjory Stoneman Douglas High School shooting
Feb. 14, 2018
Marjory Stoneman Douglas High School
Santa Fe High School shooting
May 18, 2018
Santa Fe High School
Kerch Polytechnic College massacre
Kerch Polytechnic College massacre
Oct. 17, 2018
Crimean Peninsula
Kerch Polytechnic College massacre
Kerch Polytechnic College massacre
Oct. 17, 2018
Kerch Polytechnic College
Suzano Massacre
Suzano Massacre
March 13, 2019
STEM School Highlands Ranch shooting
May 7, 2019
STEM School Highlands Ranch