The father should have been shot. He was the one kicking the girl on the ground. WTF. Grownups are supposed to be grownups and act accordingly. He should have been breaking the fight up, especially with his daughter wielding a knife. Now he has to bury her.
Police officer had very quick wits. He surveyed the situation and acted accordingly. Citizens wielding a knife and in close proximity of another citizen poses an immediate dangerous threat. He most likely saved the other girl. Now, we don't know the whole story. The other girl could be a fukkin menace but based on what he saw and the commands he gave, he was totally right in his actions. We need more cops like him that can protect and serve and not fukk up in the heat of the moment.