This clown now has a hoked up Muslim name. He is likely a Black Muslim of some stripe. But when he was in Vietnam he was identified by his Christian birth name and 99% likely had not gone Mohammedan back then.
The name is very similar to a very famous Arab navigator and poet. Google for
Ahmad Majid. If he actually was a SEAL, he might have changed his name to Arabize it. Black Muslims often do that.