What lie? This is where I lose contact. We were all told that Pat Tillman was killed in battle. I don't recall any specific narrative other than "in combat". If it was reported as "died heroically in combat"... That's *not* false. He *was* attacking an enemy position. That he was engaged by our side by mistake sucks, but it doesn't change his actions one bit.
If there was any embellishment of Tillman and his heroics, the people that did that are the *media* and not so much the Army. It was a compelling story and it wrote itself.
But I remember it coming out right away, within a couple of weeks IIRC, that the Army investigation confirmed instead that he was killed by his own unit by mistake. Not much of a coverup, if you ask me.
The media probably did not help matters, but if the Army had investigated the incident before saying anything they may have saved themselve much embarrassment. This could not have helped matters.