I think you may be correct. There was a fellow who "disappeared"
out by where I live, and they searched for him intensively, this was about 2 months ago, and he was never found, his vehicle was found, but not him personally. I would have looked for the circling buzzards if I was searching. Anyhow, I think this one is suspicious, as I am familiar with the area, and if he wanted to be found, he would have been found. I think this "missing" hiker may be just what you are talking about. I was a JOSAR member several years ago, btw.
http://www.instantriverside.com/2010/07 ... gia-hiker/