You are right, we cannot pretend. But, I will not accept that most likely this is quite common. If this were 1950's South Carolina I would agree. But I don't agree for one second that this is a common occurrence. Intellectually I refuse to believe that this one incident displays an underlying problem. Sorry, I just don't buy it.
Again, I am not condoning what this officer did. But, when you run from a cop, nothing good will come of it. I'm sure this is the last thing that the dead guy expected to happen but he made that choice. He had the bad luck to be stopped by someone who has, from what I can see, no moral compass at all.