On those occasions when he had killed in the dark, he later needed to see his victims' faces because, in some unlit corner of his heart, he half expected to find his own face looking up at him, ice-white and dead-eyed. "Deep down," the dream-victim had said, "You know that you're already dead yourself, burnt out inside. You realize that you have far more in common with your victims after you've killed them than before.
Dean Koontz, The Bad Place
alone, empty, need, numb