I just want to add that next year is election year, and the top leaders of many agencies have resigned and are seeking new offices, and the general public was hoping for convictions or closure in this matter. And the current conditions in Chiapas/Guatemala border with the Cartel groups aren't helping. It could get really ugly.
Expect citywide demonstrations through the first week of October, due to also the anniversary of the Tlatelolco massacre of 1968.