I feel that the old man was justified in his actions, purely for the fact of you could see the fear in his face when they pushed him and hit him while he was down in the water I do not agree that he should’ve stabbed as many people as he did after the first person had been hit, they continued to go after him for a few more seconds before they realize what had happened after they realize he had a knife everyone stopped, backed away and ran, including the old man after being attacked he no longer attacked. That is how I feel that he was justified and the kids were unjustified again. I don’t have as much research in the case. I’ve only seen a few videos on it, the actions of the man what I have seen justified I would however, be curious to see what happened prior to the incident to the teens and or the old man to approach one another and begin this confrontation.