Back in his hometown of Waynesville, North Carolina, Massey got a job as a furniture salesman, then lost it after speaking at an antiwar rally. Two or three times a week, he puts on his Marine uniform and takes a long walk around the nearby town of Asheville carrying a sign that reads: “I killed innocent civilians for our government.” The local police now keep an eye out for him, he says, because people have tried to run him over.

When asked what he would say to someone who thinks the way he did before the war, Massey falls uncharacteristically silent. “How do you wake them up?” he finally responds. “It’s a slow process. All you can do is tell people the horrible things you’ve seen, and let them make up their own minds. It’s kind of the pebble in the water: You throw in a pebble, and it makes ripples through the whole pond.”