"no human intervention"? but the waypts were also programmed. Clearly by the flight crew says Mary Schiavano.
Its actually all sorta looking like the mastermind wanted to go to a remote ditching spot with all the fuel used up, for an attempt to duplicated the great Hudson River feat with a lightened load? And maybe did??
People have been wondering why, if suicide, it took so long to do it. Looking at the profile presented over the last week, I cannot see this man being happy to destroy his plane by diving from a great height - I feel you may be close to the truth there.