The worst of dehumanising racist behavior in full action and on display, but here, there could be no excuse of the perpetrators, of someone in their society didn’t knowed about it!
They said it, they did it, they sadisticly celebrate it, out of their cognitiv cynic disorderly behaving in their ideology, they filmed it, they openly shared it to the World, they cheered over it. Against humanity they are proud of it. There was just 1 Terror Organisation, which was indoctrinated to that point before and full of dehumanising beliefs of racist hatred, cheering so openly about their attrocities and massacres.
A group who has lost all sense of humanity and normal human behavior towards and by social interacting with other human beings, from any other group, with no sense left of their crimes against humanity, that is a serious thread for Peace in the World!