I'd wager something like this happens every single day in African civil wars, or between Mexican drug cartels, or in Iranian prisons. Perhaps this is the first time such an event has been broadcast on television to cheering crowds, but the event itself is simply the default state of uncivilized humanity - coming soon to an urban area near you, if the statists get their way.
Well, in Haiti, and particularly in South Africa, Winnie Mandela, was known to give her adversaries “pearl necklaces” which was to wrap an automobile tire filled with gasoline around the head of her enemies and ignite it. Doesn’t appear to be that much different.