Coming soon: Possible depression-act.
Girlfriend left him; Family death; dog died; Silverado pick-up was repossessed.
Wait, that’s an American country song....nevermind.
You might not be far off.
First thought is Islamic terrorism. Perhaps something will be found out on his computer or phone records to prove this.
Another thought is unrequited love.
Sounds like standard procedure is to have a flight attendant go into the cockpit when the pilot leaves so the co-pilot can stay seated at the controls.
The FA can then open the cockpit door on the pilot’s return.
What if Lubitz killed the FA, and decided to crash the plane because of his crime. Maybe he had a thing for the FA and had been rejected—who knows.
The whole thing about him breathing steadily while pandemonium reigns outside the door shows a person who has decided upon a specific course of action.
The only question is why.
There is more than is being released right now.
It will come out eventually.