Robb elementary in Uvalde lived through a history of discrimination against Mexican-Americans that prompted a student walkout in 1970. Tonight on @nightline I talk to the teacher at the center of the walkout and students who participated. (You can also stream on @hulu starting tomorrow) Está noche en Nightline en ABC les cuento la historia de como la comunidad de Uvalde protestó contra injusticias en 1970. #uvaldestrong🤍 #uvalde365