CNN Erin Burnett OutFront July 21, 2014 23:09:00
Electronic communications et cetera. compare this for example to the shoot-down of kal 007, on that flight date ra recorder they could tell it exploded on the tail. first, the plane continued to fly for some time so they knew how the whole sequence went down. there is a mic in front of each pilot and it records what happens in the cockpit. that would record if the pilots hit, what went on, any clicks, anything going on in the cockpit would be recorded. so they might have known what was happen pp...
Source: archive.org