This story reminded me of the old picture above, which appeared in the June 2014 Wild West. This was also an Arizona case, and I believe the skeleton’s location might have been the country around where Roosevelt Dam was built sometime before 1910. I don’t know anyone ever identified the dead man, however. The skull in the more recent case has been ID’d but there’s no hint as to where the rest of his remains rest of how they came to be separated from his head, or how he came to be out in the desert in the first place.
Nana and his warriors left quite a few corpses in the mountains and desert, of course. I’ve seen a couple of graves myself and can guess where there are others. But it’s likely some were never found or discovered so much later they were never identified as the old man’s victims.