MEXICO CITY (Reuters) - Ten years ago, Edgar Vargas' life forever changed when he was shot in the face in one of Mexico's most notorious cases of mass violence in recent memory: the attack and disappearance of 43 students from the rural teacher-training school of Ayotzinapa.
A bullet pierced Vargas' jaw on the night of Sept. 26, 2014, as he tried to help his classmates trapped in a bus being shot at by gunmen. Vargas, then 19, survived by crawling along the road until he found shelter, though he was left with deep physical and emotional scars.
