In a rational country this savage would already have been hanged and his family home burned to the ground.
L
Murder anyone like that and see what happens. Race has nothing to do with it. Nothing. Say "Touch me and see what happens." against someone near me and then pull a knife. You'll see what happens next. There is no logical reason to stab someone who is unarmed and has not physically assaulted you with punches, etc. and kill that person. None.