The toll in Friday's massacre—at least 26 killed—puts it among the deadliest mass shootings in recent history. Some others:  Aug. 5, 2012: Army veteran Wade Michael Page kills five men and one woman and wounds three others, including a police officer, before taking his own life at the Sikh Temple of Wisconsin outside Milwaukee.  July 20, 2012: Twelve people are killed when a gunman enters an Aurora, Colo., movie theater, releases a canister of gas and opens fire. James Holmes, a 24-year-old former graduate student at the University of Colorado, is charged in the crime.  April 2, 2012: One L. Goh, 43, is charged with fatally shooting seven people at Oikos University in Oakland, Calif.  July 22, 2011: Confessed mass killer Anders Behring Breivik kills 77 in Norway in twin attacks: a bombing in Oslo and a shooting at a youth camp outside the capital.  Jan. 8, 2011: A gunman kills six people and wounds 13 others, including then-U.S. Rep. Gabrielle Giffords, outside a grocery store in Tucson, Ariz. Doctors say Jared Lee Loughner, who has been charged in the deaths, suffers from schizophrenia.  April 3, 2009: Jiverly Wong, 41, opens fire with two handguns in an immigrant-aid center in Binghamton, N.Y., killing 14 people, including himself, and wounding four more.  Sept. 23, 2008: Matti Saari, 22, walks into a vocational college in Kauhajoki, Finland, and opens fire, killing 10 people and burning their bodies before shooting himself in the head.  Feb. 14, 2008: Steven P. Kazmierczak opens fire in a lecture hall at Northern Illinois University in DeKalb, Ill., killing six people, including himself, and wounding 21 more.  Dec. 5, 2007: Robert A. Hawkins kills nine people, including himself, and wounds four when he opens fire at the Westroads Mall in Omaha, Neb.  April 16, 2007: Seung-Hui Cho, 23, kills 32 people and himself on the Virginia Tech campus in Blacksburg, Va.  April 26, 2002: Robert Steinhaeuser, 19, expelled from a school in Erfurt, Germany, kills 13 teachers, two former classmates and a police officer before committing suicide.  Sept. 15, 1999: Larry G. Ashbrook, 47, opens fire at a teen prayer service in Fort Worth, Texas, killing seven people and wounding seven more before committing suicide.  July 29, 1999: Mark O. Barton, 44, a stock-exchange trader in Atlanta, kills 13 people, including himself, his wife and two children, and wounds 13 more.  April 20, 1999: Students Eric Harris, 18, and Dylan Klebold, 17, open fire at Columbine High School in Littleton, Colo., killing 12 classmates and a teacher and wounding 26 others before killing themselves.  April 28, 1996: Martin Bryant, 29, bursts into a cafeteria in the seaside resort of Port Arthur in Tasmania, Australia, shooting 20 people to death. Driving away, he kills 15 others.  March 13, 1996: Thomas Hamilton, 43, kills 16 kindergarten children and their teacher in elementary school in Dunblane, Scotland, and then kills himself.  Oct. 16, 1991: In Killeen, Texas, George Hennard opens fire at a Luby's Cafeteria, killing 23 people before taking his own life. Twenty others are wounded.  Dec. 6, 1989: Marc Lepine, 25, bursts into Montreal's Ecole Polytechnique college, shooting at women he encounters, killing nine and then himself.  July 12, 1976: Edward Charles Allaway, a custodian in the library of California State University, Fullerton, fatally shoots seven fellow employees and wounds two others.  Aug. 20, 1986: Pat Sherrill, 44, a postal worker, shoots 14 people at a post office in Edmond, Okla., then kills himself.  July 18, 1984: James Oliver Huberty, an out-of-work security guard, kills 21 people in a McDonald's restaurant in San Ysidro, Calif. A police sharpshooter kills Mr. Huberty.  Aug. 1, 1966: Charles Whitman opens fire from the clock tower at the University of Texas at Austin, killing 16 people and wounding 31.
A gunman at a Connecticut elementary school killed at least 25 people, including 18 children on Friday. It is among the world's worst mass shootings. Here are some others.