Twenty years after NFL defensive back turned Army Ranger Pat Tillman died from friendly fire in Afghanistan, ESPN E60 presents "Pat Tillman: Life. Death. Legacy," a one-hour program featuring new reporting and interviews that shed light on Tillman's fascinating and tragic story. Tillman's decision to turn down a multimillion-dollar NFL contract and enlist in the military following the terror attacks on Sept. 11, 2001, drew national news coverage.