My gut tells me this aircraft has had an instantaneous, catastrophic structural failure or in flight breakup. The similarities to PA103, AI, UTA, TWA and the list goes on are unerringly similar. Just leave the aviat, nav comm aside for a moment.
I hope and pray the poor soles on board didn't know too much about it. God we are lucky we only die once. May they rest in peace.
If there are any perpetrators, may they rot in hell.