Late October. After midnight. You’re waiting up for your eighteen-year-old son. He’s past curfew. As you watch from the window, he emerges, and you realize he isn’t alone: he’s walking toward a man, and he’s armed. You can’t believe it when you see him do it: your funny, happy teenage son, he kills a stranger, right there on the street outside your house. You don’t know who. You don’t know why. You only know your son is now in custody,...