[sinuhe69]

If the pilot tried to kill all the passengers to cover his tracks and then killed himself, as many here have commented (which TBH is extremely cruel and insidious), why did he bother trying to land the plane at all? Why not just cut the engine and dump it in the sea? People who commit suicide are the most depressed. They don't care what other people think!

Why of all the possibilities, you choose the most vile one and present it as if you know the facts?

I'm not making any assumptions about the pilot's motives or the final circumstances. I just wondered about the implications of a controlled glide, as the paper suggested. Is there any uncertainty, any margin for error? There certainly is.