In this Oct. 20, 2015 photo, Mario Vergara pinches the skin on his hand as he stands in a field where dozens of bodies were found buried in clandestine graves, on the outskirts of Iguala, Mexico. Mario is searching for his brother, Tomas, missing since July 5, 2012. The first time the men and women in Iguala went out to dig for their missing relatives, they didn’t know anything. “We knew we were going to look for buried bodies, but we never imagined that was what we would find, " said Vergara, "What we saw broke us.” He has yet to find his brother.