Pat Tillman was well-known to American sports fans: a chisel-jawed and talented young professional football star, he was on the brink of signing a million dollar contract when, in 2001, al-Qaeda launched terrorist attacks against his country. Driven by deeply felt moral patriotism, he walked away from fame and money to enlist in the United States Special Operations Forces. A year later he was killed - apparently in the line of fire - on a desolate hillside near the Pakistan border in Afghanistan. News of Tillman's death shocked America. But even as the public mourned his loss, the US Army aggressively maneuvered to conceal the truth: that it was a ranger in Tillman's own platoon who had fired the fatal shots.