The relationship between Captain and F.O. has been subject of some scrutiny, as if they co-conspired maybe.
On the contrary, with F.O. son of a current government leader and Captain being an ardent fan of the opposition, they might even have occasion to argue the matter. Like Ibrahim's reversal of acquital on trumped up charges, (some say) which happened that same day.
Arguments can of course get out of hand on occasion. Taken to a logical conclusion (or perhaps illogical?) seems this might be more of a trigger to some impulsive craziness than a divorce even.
Crazy things can happen, and we know crazy things DID happen. Just sayin. Its keeping me up thinking about it, and the awful consequences of whatever is the actual cause of this tragedy.