On the morning on August 1, 1966, 25-year-old former student Charles Whitman ascended to the observation deck of the University of Texas at Austin Main Building with multiple weapons and 700 rounds of ammunition and began shooting indiscriminately on persons below. The rampage ended 96 minutes later, when Austin police officers Ramiro Martinez and Houston McCoy, alongside University Co-op employee Allen Crum, reached the observation deck and shot Whitman dead. Whitman, a former Marine sharpshooter, killed 14 people and injured 31 on campus. He had earlier murdered his mother, Margaret Elizabeth Whitman, and wife, Kathleen.