I remember on another forum a photographer talking watching hiim during a court deposition (I think it had to do with record royalties or something).
She commented that he was doing his drama queen act but the lawyer kept pushing. Then all of a sudden it was like BOOM! The mask fell away and the real man came out...and he was extremely cold, hard and vicious.
I'm not a psychologist, but I think that Thriller video was a joke on the people, that's how he really feels inside. He's the devil
According to Elvis' daughter, Jackson DOES have a normal voice and his little breathless one is an affectation.