[cynwoody]

I’m still betting Chinese air-defense missile.

What would be the motive? They were no where near China.

It would make more sense to inquire as to the whereabouts of the USS Vincennes.

[CivilWarBrewing]

North Korea came very close to downing a commercial airliner JUST LAST TUESDAY:

Chinese passenger jet carrying 220 people in near miss with North Korean missile

North Korea is on the list of suspects, here.