Charles Joseph Whitman, a student at the university and former U.S. 18 killed at University of Texas, in Austin, on Aug.James Huberty, 41, shot and killed 21 people in the restaurant before being killed by police. 21 killed at a McDonald's in San Ysidro, Calif., on July 18, 1984.George Hennard, 35, drove his pickup truck through the wall of the cafeteria, then shot and killed 23 people before dying by suicide. 23 killed at Luby's Cafeteria in Killeen, Texas, on Oct.14, 2012 shooting, the third deadliest in U.S. Twenty-six people were killed in the Dec. Street artist Mark Panzarino writes the names of the Sandy Hook Elementary School victims in New York's Union Square on the six-month anniversary of the massacre.
