MANN,
The story you are referring to is when Buster Ward rented a truck in Hot Springs and told everybody that he was going to use it to haul the treasure (gold bars) he and his friend Willie Douthit had found in a cave in the Caballos. THAT part of the story is documented and true.
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The rest of the story is that by the time he went to go to the cave, the Police had shut down the area, but Ward had a caravan of trucks following him, and crowds following on foot. When he got near the site (so his story goes) he saw the glint of a reflection from the top of Granite Peak, and he just knew it was Willie Douthit looking at him through the scope of a rifle, so he pretended like he couldn't remember where the cave was.
Mike