Crime Night
The closed door of Carnicasa: where was Mariana: The murder of Mariana Valtierra A mother was searching for her daughter 250 meters from home. Her daughter was inside, still alive. On Thursday, July 27, 2017, Mariana Joseline Valtierra went out in her pajamas to buy milk. The public cameras were not working. The butcher shop was closed that day. No one saw what happened inside. In this episode, we explore how a man with documented violent history, without a phone or social networks, operated invisibly for two years. We analyze the central contradiction: the "closed" butcher shop as the perfect setting, the proximity of 250 meters that was not enough to protect, and the question that haunts the forensic investigation: why did a report of attempted murder never generate an active alert? Victim: Mariana Joseline Valtierra Valenzuela Date: July 27, 2017 Location: Ecatepec, State of Mexico Status: Sentenced to maximum penalty and life imprisonment (May 7, 2022) - A neighboring store's camera captured Mariana buying and the suspect in the area minutes before, proving systematic stalking. - Quintero's sister formally reported him for attempted murder against their mother years earlier; still, he was rehired without legal restriction. - Mariana expressed fear of Quintero's "gaze" at the age of 16; a fact that did not lead to institutionalized family alert. - She disappeared 250 meters away, was found dead on the upper floor of Carnicasa after bleeding out; a flight of over 500 kilometers without electronic devices lasted two years. Mariana Valtierra, Ecatepec murder, 2017, forensic investigation, sexual abuse, imperfect crimes, criminal minds, justice, homicide, Spanish true crime If you'd like to listen to this podcast ad-free and access premium episodes, we invite you to try our subscription with a 14-day free trial at obomedia.com. © 2026 Created with OBOMEDIA technology. All rights reserved. This episode and its content (audio, text, and associated materials) are the property of their respective creator and are distributed under the OBOMEDIA name on platforms such as Apple Podcasts, Spotify, Amazon Music, and Pocket Casts. Reproduction, distribution, editing, or total or partial commercial use is prohibited without prior written authorization. For permissions, licenses, and commercial inquiries: business@obomedia.com
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