@Mahatma Kote
There is a war zone out there.....it really is not like a normal functioning place with a police force, a compliant population and rule of law....let alone an air accident investigation team.
There will be no 'proper' investigation...any more than there is one is other plane crashes in conflicts.
I guess from launch traces/AWACS/Sat data etc the USA/USSR already know exactly what sub-type of missile it was and from exactly where it was launched.
We know what brought the plane down - the only thing 'we' don't know is who fired it.
I reckon in a few weeks time it will all have been "forgotten" much like MH370 has been.
Anyway
I've long ago issued instructions to those I know that if I get wiped out in a mega-one rather than the usual rubbish about how wonderful I was and how deeply I will be missed to instead issue a statement that I was a complete f'ing moron and didn't give a t8ss about anything.