It stayed for five thousand years.

And in 1991 it let him go.

Science has spent thirty-three years answering the question of who he was, one method at a time.

The answer is still incomplete.

But it is more complete than it was, and richer than anyone who found him in 1991 could have imagined.

He was a Copper Age man of primarily Anatolian ancestry, living in genetically isolated communities of the Alpine valleys.

He was darker-skinned than artistic reconstructions had shown.