How do we deal with evil!!

I just read this story and it really got me to thinking about how we react to the obvious presence of Evil. Now I can go into what I mean by evil, the Devil, the lack of morality and all that. I think that is why reactions to it are so crazy in Today's world. So many people have tried to define evil for us that it has been watered down and weakened in peoples minds. We wonder if it even exists. We say that people are weak. Her we have a father that shot his son to death. The tragedy of this story alone is amazing, but the deep meanings are ones to live our lives on.
What can make a father kill his own child? Why was this child molesting other children? How can a mother stand by and watch her child be killed? how can a mother not know that this man was capable of shooting his child? What are all the things that lead to this tragic final scene?
There will be many psychologists, counselors, religious leaders and sociologists that will weigh in on a matter like this. Many regular folks will have sleepless nights and arguments in bars about it. There will be advocates left and right that will claim that it proves what they have been seeing for years. We will be pulled in many directions. Politicians will claim that they can end situations like this if we elect them. MADD will claim that drinking and driving was behind this. If not for the IRAQ war young men would not be dying in the streets in this way. My ex wife is an example of this type of crazy. My ex husband tried to kill me this way. All of our own emotions and thoughts will be tested and challenged. We will go into a state of fear over what is becoming of our society. There will be widespread panic and murder and mayhem. Sons will shoot their fathers because I better get him before he gets me.
I know that you think I am crazy right now. The thing is that is our reaction. And the reaction of the EVIL one that caused all of this is to sit back and laugh and say "I have got them right where I want them!!" So think about it. Let's stop letting the Evil rule our lives!!