I think it has more to do with training and better use-of-force regulations. The police in the States appear to have a "shoot first, ask questions later" mental

I think it has more to do with training and better use-of-force regulations. The police in the States appear to have a "shoot first, ask questions later" mentality as evidenced by these events. Disarming them in a country like the US is impossible, but surely better training and stricter rules/penalties would help the situation.