One thing that seems weird to me, is that the co-pilot must not have exhibited ANY unusual signs/symptoms prior to boarding the plane..
it is my understanding that if the pilot observes anything unusual he has the authority to ground the plane, at least until a replacement copilot becomes available..
Also, assuming the copilot seemed ok on boarding, but began exhibiting odd behavior during the flight, would a pilot leave the cockpit, for ANY reason?
And if the report is true that there was no change in respiration rate of the copilot until the collision with the ground, that is extremely bizarre. I would think there would be an increase in respiration as soon as he locked the pilot out of the cockpit, and then made the final decision to crash the plane.
I am also wondering about a hypnosis angle, or some sort of drug, perhaps even administered without knowledge of the copilot. I know I’m getting into very bizarre speculation here, and I am neither a pilot nor anyone who has any experience with weird drugs, but based on what I have seen so far, this just gets weirder and weirder...
The normal breathing and seemingly calm behavior are unusual in the extreme. It’s just baffling to me. I can’t seem to get past that part. Hypnosis seems ...too out there and yet I guess it’s possible.