I think you can ask this question of the authorities of the State of Mexico. The students represented agents of change. They represented a rural school—in other words, an opportunity for these students to study and an opportunity to denounce what was happening in Mexico. Two years prior to the facts, two students has already been killed in Ayotzinapa. Federal agents had assassinated them. This would suggest that there had been a situation of repression in that area. We're not just talking about torture and disappearance in the context of investigating crime. There are other things that have to be investigated within the context of social protest in Mexico. In fact we would need another audience just to speak about repression of social protests and the freedom of expression existing in Mexico today.
On June 2nd, 2015. See this statement in context.