It’s not a matter of “not doing better”; it’s merely more evidence that there are two sets of laws.
Had any non-officer shot nine innocents while taking aim and firing at a criminal shooter while said shooter was 8 feet away, he or she would be arrested and charged.
When will the involved officers be arrested for wounding nine innocents when they were 8 feet away from the actual criminal?
It is hard to get away from the double standard. Police are treated differently. I also see cases where ordinary citizens are allowed more leeway than police are.
What we are seeing is that the transparency of society brought about by ubiquitous video recorders, is making everyone more accountable. This is making police more honest, and that is a good thing.