BTW - I believe the 'H' in those initials was at one time MSS's assigned downed pilot signal. Such things are highly classified.
He may have also made this 'H' signal at the crash site. (From bits & pieces reported and my own speculation about what those bits that were reported actually meant. In other words - no credible source has said this much publically, but some things that were said cause me to speculate this happened.)
Didn't he write Iran under his initials?