I took a class on Forensic Science a couple of years ago and made friends with the teacher who is a professional medical examiner and trace evidence specialist. I recently got back in contact with her and sent her this e-mail today (personal sentiments/names redacted):
"I'm e-mailing you now because I've been trying to look into a cold case for a man known as the Greensville County John Doe or "Grateful Doe." If you don't know of this case, you can find details through any google search. Due to the recent attention from social media, some pictures of a boy resembling the victim have been released from someone who believes they knew the doe.
I know that you'd require more information to make a solid conclusion, but my request of you is that you take a look at the pictures I've attached if you find the time and let me know if you think that this could be our guy, as there's just been speculation up until this point. Included in the pictures are a digital reconstruction, a post-mortem reconstruction, things recovered from the body, two photos of the potential lead, and said photos in a side-by-side comparison to the post-mortem reconstruction and a sketch of the victim."
Hopefully will get a response by tomorrow. Doing what I can to spread the word.