I hear people all the time on TV ask if it was a suicide why not do it right away?
I say there is a possibility a suicidal pilot may not want his children and family to be disgraced and remember him as a suicide pilot who also brought down hundreds of innocent people.
So fly to the remotes area and put the plane down. No one will figure out what happened. -Tom
Or he was a coward and just wanted to go to sleep. Open the windows high enough, set the course, and die.
We have to dismiss rational thought when dealing with suicidal people, which is not generally a rational act.