Ramiro Martinez remembers every step he took up to the University of Texas Tower observation deck — and sniper Charles Whitman — on August 1, 1966. Here, nearly 50 years later, the former Austin police officer retraces the steps he took that day, when he led the charge to Whitman and helped put the sniper’s 90-minute killing spree to an end. This video was made to reveal the truth about that final confrontation and record it for history.