[willk]

Not denying it was suicide or not but this theory seems far fetched. First question would be why he would want to do such a complex suicide?

[JohnnyP]

Because he was a Muslim?

[Mr Radical]

First question would be why he would want to do such a complex suicide?
Because before committing murder/suicide first he had to go through the required ritual muslim prayers. At daybreak. He couldn't do that on the morning of takeoff because that would have alerted people. So he had to keep the plane in the air long enough for the next daybreak.
The alternative is even more far fetched - the plane was being flown by some agency not even on board.

[Lurker]

“ First question would be why he would want to do such a complex suicide?”

It wouldn’t be the first time.

https://en.wikipedia.org/wiki/Germanwings_Flight_9525

L

[Eva]

It was a mass murder/ suicide. Maybe he like the idea of the whole world looking for him forever.