Charles Andrew Whitman (June 24th, 1941 – August 1st, 1966); known as the Texas Tower Sniper was a former Marine and spree killer. On August 1st, 1966; he climbed a tower at the University of Texas in Austin with 7 guns and killed 17 people before being shot dead by a police officer.
Earlier he stabbed and shot his wife and mother to death, then killed two people and wounded others as he ascended the tower of the University with a shotgun. The rest of his victims were killed or wounded with a sniper rifle. Upon autopsy, medical examiners discovered that Whitman had unknowingly been suffering from an aggressive brain tumor, likely explaining his sudden, violent shift in personality.