The truth commission isn't a constitutional institution and Encinas is no prosecutor to investigate someone. On top of being completely illegitimate, it's recycling a "state crime" accusation already dismissed by the Inter-American Commission on Human Rights. This is part of Pres. López Obrador's political proxy war against his rival, former Pres. Peña Nieto.
With Jesús Murillo Karam having already been indicted, there's no reason Pérez shouldn't face similar charges. We know this was a state-sponsored crime, and with officers like Pérez in custody, it's finally time to try these men and give justice to the victims and their families.
Even if this is positive news for the families of the victims in their pursuit for justice, these latest developments don't mean anyone will actually be punished for the tragic murders of those 43 students. Due to Mexico's inefficient judicial system, this will likely become a long-lasting legal battle with no one held accountable in the end.