French Prosecutor Brice Robin claims that Lubitz, the co-pilot, crashed the plane deliberately.
While the co-pilot was alone he locked the door and engaged a system which started the descent of the plane. This can only be done voluntarily….The co-pilot didn’t say a single word while he was alone and could be heard breathing normally. It wasn’t the breath of someone who was struggling. He didn’t say a single word, it was total silence.