What you say is my fear....a drifter who is long gone by now. BUT...from my understanding, you'd have to be acquainted with the area to even know about those trails. Maybe he is a former resident, or used to work in the area. I've driven through Delphi and didn't know about the trails based on the highways I took going through. I could be wrong....but it just makes sense.
It's likely he didn't have anywhere to be around dinnertime...he'd have a lot of cleaning up to do. I considered that maybe he was a truck driver....but don't they have schedules to stick to?? I still wouldn't rule that out.
I just have a bad feeling that we are going to be wondering for a very long time. It ticks me off!! Why not force us all to submit DNA to a database??? I think the benefits outweigh the drawbacks at this point.
that's a very bad idea and very dangerous for reasons I won't get into here.