Relatives show photos of Monserrat Loza, who disappeared in May from a Mexico City nightclub, in front of the Attorney General's Office in Mexico City, Sunday, Aug. 25, 2013. Families say authorities have told them that 10 of the bodies found in a mass grave outside the capital have been identified so far as being among a dozen young people kidnapped three months ago from a bar in the city. (AP Photo/Marco Ugarte)