Mine too. They’ve discovered something about the pilot and trying to coverup?
If they release the transmission tapes we will know. If they do not release the tapes, we will also know. If they attempt to edit the transmission tapes we will also know that because it is easy enough given the proper equipment to tell if a tape has been edited.
In one way or another the truth will come out.
Pilot may have gone to front bathroom to place device which started smoke/fire. Comes back to cockpit and when alarms go off, sends other pilot to check it out. Locks cockpit and begins descent, screaming Alibaba Snackbar. Other pilot comes back and fight for control begins.
Egypt is going to lose a big source of income if pilot intentionally crashed plane so may try to cover up what really happened.