The role of Zerón in the investigation into the case, which has left a deep scar on the administration of Mexican President Enrique Peña Nieto, was of great importance.
The head of Mexico’s Criminal Investigation Agency (AIC), Tomás Zerón, quit his job on Wednesday, just 12 days ahead of the second anniversary of the Ayotzinapa massacre, which saw 43 student teachers disappear from the small town of Iguala.
The parents of the 43 have been calling for Zerón to resign since the video was made public.
Álvarez pointed out that Zerón has been accused by the victims’ families of manipulating the evidence related to the disappearances.
The location was where a bag was found containing human remains, from which a bone fragment was extracted leading to the identification of Alexander Mora Venancio, one of the victims.
Fuente: http://elpais.com/elpais/2016/09/15/inenglish/1473955681_145012.html