Question: Tower is a 2016 animated documentary film directed by Keith Maitland about the 1966 shootings at the University of Texas at Austin, by who?
Sentence (from "University of Texas tower shooting"): On August 1, 1966, Charles Whitman, a former Marine sharpshooter, took rifles and other weapons to the observation deck atop the Main Building tower at The University of Texas at Austin, then opened fire on persons indiscriminately on the surrounding campus and streets.
Relevant evidence: Yes