I agree Knox. Although most well trained Law Enforcement officers have the ability to compartmentalize tragedies. But the darkness that they have encountered over the past nine days would be beyond my comprehension.
Roger L. Depue, Ph.D. Pioneer of the FBI BSU can explain it much better than I ever could...
Founder of The Academy Group, Inc. Retired FBI (21 years). Former Chief of the FBI Behavioral Sciences Unit. Became the first administrator of the FBI's National Center for the Analysis of Violent Crime.
'When I was a young man, a friend taught me the ancient art of dowsing, and after a time, I became something of a practitioner myself, finding water underground as a kind of parlor trick for friends. It might seem odd that a man so rooted in grim reality would take an interest in something so ethereal. In fact, I’m fascinated by the unseen forces at play in the lives of human beings.
My job has been to try to stop human predators before they kill again, and after studying them so closely over so many years, to me their traits seem clearly recognizable.
Evil is more than a vague notion. It is an entity, and it is manifest on the earth. It has reflexes and intuition, senses vulnerability, and changes its form to adapt to its surroundings. Those who do not believe the Devil walks this earth have not seen the things that I have seen.
Evil is not a discrete entity that springs forth fully formed. It is born in the mind, takes root there as fantasy, and prospers when normal human restraint can no longer contain it. I have seen it devour the personalities of men like Richard Speck, Jeffrey Dahmer, and Ted Bundy, turning them into blank-faced sociopaths who clearly know right from wrong, but choose, time and again, to follow their own base urges, with complete disregard for the terrible human suffering they cause.
I believe that every act of homicide causes a slight unbalancing in the world, and that it diminishes life’s universal equation. In the interest of justice, it is imperative that someone try to right that imbalance. But the task of fighting evil can take a terrible toll on the people who are charged with it. It can cost them their families, their equilibrium, their capacity for joy'...
http://www.academy-group.com/depue.html