Undoubtedly the lawyers are lining up and licking their chops. That's why this Prosecutor's presser makes no sense. Based on the information that has been reported jumping to that sort of conclusion has to have a motivation behind it. We probably won't ever hear about it, but attorneys for the airline, the pilot's union, Airbus, every equipment manufacturer who has any device installed on that aircraft and anyone else who feels they may be drawn into this in a legal sense will be out there pleading their case of how it's anything but their fault. That's a glaring example of why we should not jump to conclusions with such limited data and rather wait until the investigation is complete.
Is it possible this guy took the airplane out? Sure, but given the history of the A320 I would not fixate on the limited information gleaned from the cockpit audio. Has any serious audio analysis been done? I doubt it. I read they say you can hear the co-pilot breathing normally and sounds that indicate the pilot was banging on the door wanting in. How do we know the co-pilot was conscious? Answer: we don't.