FYI, Idaho majorly revamped their missing persons clearinghouse and they now have a picture of the decedent. Warning: PM image, though not too graphic imo:
In the new information, it is reported that they believe he was born between 1930-1940, putting him at around 55-65 in 1995. There is a tentative name, but it's believed it was a fake ID.The PM photo makes me think that he was 40+, if not over 60.