I sit down with Professor James Fallon, renowned neuroscientist and author of The Psychopath Inside, to talk about the past, present, and future of psychopathology, the violence of Elliot Rodger, and why these "human predators" might, for better or for worse, be necessary.
"Sitting inside now," says the short, punctuated text message. I read it at the red light on Sunset Boulevard and Crescent Heights, a block away from the coffee shop where we planned to meet. It is a late, lazy afternoon. The sun is drooling molasses behind the Strip's low horizon of billboards.