A demonstrator carries a sign that reads in Spanish: "They took them alive, return them alive," in reference to 43 missing students from the Ayotzinapa rural teachers college, during a march to the private TV channel Televisa in Mexico City, Tuesday, March 10, 2015. The missing students' parents and supporters accuse national media outlets of decreasing their coverage of the missing students after statements by then-Attorney General Jesus Murillo Karam who said his investigators indicated all 43 students were killed by the Guerreros Unidos drug gang. The parents still have no concrete information on what happened to their children, and demand their voices be aired in order to continue the search for them. (AP Photo/Eduardo Verdugo), APTOPIX