I continue to be amazed by how much of the life/world is captured on mobile phone cameras and satellites nowadays. Someone pointing their camera towards the plane just when the missile hits it is astounding!
Some reports suggested that two missiles were launched. It's possible that the person noticed the first one or was otherwise made aware of the launch, and therefore started filming.
But yeah, if anything out of the ordinary happens today, it's very likely that it's being captured.
