Robert Pillsen-Rahier

I hate to say it but I would wager this guy is dead. I mean you pray for the best but he would be in his 40's now. As of late January 2019 still nothing on this.

Links
http://www.charleyproject.org/cases/p/pillsen-rahier_robert.html
https://www.reddit.com/r/UnresolvedMysteries/comments/4nymrg/what_happened_to_robert_pillsenrahier/