University_of_Texas_tower_shooting--Eric_Harris_and_Dylan_Klebold

The University of Texas tower shooting was an act of mass murder which occurred on August 1, 1966, at the University of Texas at Austin. The perpetrator, 25-year-old Marine veteran Charles Whitman, indiscriminately fired at members of the public both within the Main Building tower and from the tower's observation deck. He shot and killed 15 people, including an unborn child, and injured 31 others before he was killed by two Austin Police Department officers approximately 96 minutes after first opening fire from the observation deck.
Prior to arriving at the University of Texas, Whitman had stabbed his mother and wife to death—in part to spare both women "the embarrassment" he believed his actions would cause to them.
Although Whitman's autopsy revealed a pecan-sized tumor in the white matter above his amygdala, the tumor was not connected to any sensory nerves. Nonetheless, some experts believe this tumor may have contributed to the violent impulses which Whitman had been exhibiting for several years prior to the massacre.: 54 At the time, the University of Texas tower shooting was the deadliest mass shooting by a lone gunman in U.S. history, being surpassed 18 years later by the San Ysidro McDonald's massacre. It remained the deadliest school shooting in American history until being surpassed 41 years later by the Virginia Tech shooting.