>>2724882Cops are routinely found with empty brass casings in their pockets, or placed in patterns around their bodies. This is a result of the brain shutting down in extreme circumstances, and returning to training and muscle memory.
Most likely, our hiker was changing clothes due to his mental programming, but was past the threshold of the stress he could withstand. You also see similar behavior with people undergoing hypothermia; the "get naked and dig" phenomenon. People like to say things like "he was an experienced outdoorsman," but even the most native person in a region can get caught in bad weather. Dude wanted to change clothes, made a bad call, and paid the price.
It's not that mysterious.