It's almost 99.99% guaranteed that 5 passengers with stolen passports are terrorists.
Unlike the typical hijackings of land vehicles or ships, skyjacking is not usually committed for robbery or theft. Most aircraft hijackers intend to use the passengers as hostages, either for monetary ransom or for some political or administrative concession by authorities. Motives vary from demanding the release of certain inmates to highlighting the grievances of a particular community. Hijackers also have used aircraft as a weapon to target particular locations which are hard to access by ground.
- The terrorists want negotiate about XXX with XXX country, by flying to buildings in XXX country but got hit by XXX country's aircraft over the ocean.
- The XXX country and alliances keep the shootdown a secret.
It's impossible and nonsense that the aircraft is exploded by the terrorists, it just doesn't make sense for the terrorists to get on the airplane and suicide. If they want to do a mass murder they would have done that on the ground, they wouldn't have made it look like an accident. The only way it's landed to the ocean is not by hijackers intention, it's unlikely to be by captain, it must be someone who is outside the airplane.
But are there important passengers in the aircraft for negotiate which XXX country? No?