Overview

• Custody staff discovered during the night roll call on September 23 that a person deprived of liberty was absent at the Reclusorio Preventivo Varonil Oriente in Iztapalapa.
• Authorities activated the search protocol and notified the Dirección General de Asuntos Internos to interview on‑duty custodians and open an administrative investigation.
• The prison director, identified in local reports as César Viloria, and the custody personnel from that shift were presented to the Ministerio Público as a criminal inquiry got underway.
• Specialized teams began analyzing internal and access-point surveillance footage, with the SSC framing the steps as part of an internal reinforcement plan to determine responsibilities and apply sanctions if warranted.
• Local coverage named the missing inmate as Marvin Didier Barrientos Flores, 27, reported to have been detained in February on an attempted-homicide charge, with Condor helicopter overflights reported as part of the search.