I ache. My heart feels frozen solid. Seeing the images again today on TV puts me back in exactly that same spot. I was completely devastated. I felt raw and exposed and paralyzed. I had never before been in the presence of that kind of Evil. I couldn't believe the world still spun.
He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you. -- Friedrich Nietzsche, Beyond Good and Evil, Aphorism 146