I read that two passengers where from Iran. I don’t know if that could mean something.
Don’t know at this point...Could be. In fact I don’t think they know for sure who was even sitting in the cockpit on impact. Hard to believe no video feed from the flight decks. Even RTD buses have video.
Could someone have gained access somehow as the pilot exited the CP? Was the door compromised and somehow opened while the other pilot was using the can? I don’t know.