For the avoidance of doubt and to counter it not being reported by western media, this was on the news some time ago.
The problem is, any tittilating video like this is going to be constantly 'rediscovered' by people that didn't see it or forgot it and now wonder why others haven't seen it.
I'd imagine we'll all be asked again in 7 or 8 weeks why this hasn't been shown before.
But please don't believe this is a new low or a different kind of evil. From the decapitated heads of enemies displayed on spikes on London Bridge, to the guillotine, mustard gas, the black hole of Calcutta, concentration camps, Sarajevo, Cambodia, agent orange, napalm and a million other unrecorded atrocities, the only difference here is the wide availability of smart phones.