after you asked that question (which I have not heard it before) I did some research and this is the best info I could find by someone I trust..
http://michellemalkin.com/2009/07/20/questions-about-the-reported-abduction-of-pfc-bowe-bergdahl/
Michelle said there are 3 different stories...so who knows.
But still God be with him.
Yes, we should be very careful to not make accusations this serious without some basis in fact, but it does seem fairly clear that no one came into his area and took him away.
Regardless, prayers for his long-suffering family, and him.