Instead, we turn a blind eye to evil, perhaps hoping it will leave if we ignore it. But evil thrives in an environment of apathy. If we ignore them long enough, the relatively petty evils of life sometimes grow to become very large, and very real, and very deadly. It has been reported in this case that the father of one suspect is now tormented by the thought that his son could ever be in such an awful crime. I'm not surprised.
Parents often blame themselves when a child turns to crime.
My guess, though, is that it won't take this father long to recall the signs of evil that he missed or ignored. And in the long run I'll bet this father's anguish will have much more to do with his son's choice of death over life for an innocent man than it will with his son's choice of tattoos. The evil has always had a name. All it has ever needed is a face. And that is the lesson we must all learn from this crime, regardless of the color of our skin.