I just watched this on Disappeared too. So sad to hear his father died without ever knowing. What perplexes me is his girlfriend didn't hear from him for 3 or more weeks and seemed to not find this alarming. Maybe they were just friends and the show was playing up the girlfriend angle into more than it really was. It seems like if they were truly boyfriend/girlfriend they'd speak more often than that. She didn't know he was missing till his family called her.