The Tragic Fall Of Cheyo Antrax: 5 Key Facts About The Sinaloa Cartel Figure Covered By Blog Del Narco

The name "Cheyo Antrax" is synonymous with the brutal, high-stakes world of the Sinaloa Cartel, and his story—culminating in a shocking assassination—was widely documented by the infamous *Blog del Narco*. As of December 16, 2025, the latest and most explosive development in the saga of Eliseo Imperial Castro, better known as "Cheyo Antrax," remains his violent death in Culiacan, an event that sent shockwaves through the cartel's hierarchy and fueled rumors of an internal power struggle and a devastating betrayal ordered by his own family. The coverage by outlets like *Blog del Narco* provides a raw, unfiltered look into the life and death of a man born into the heart of one of the world's most powerful criminal organizations, detailing his rise as a key enforcer and his eventual, violent end.

Eliseo 'Cheyo Antrax' Imperial Castro: A Complete Biographical Profile

Eliseo Imperial Castro, or "Cheyo Antrax," was not just another figure in the Mexican drug trade; he was a member of the Zambada family, placing him at the very core of the Sinaloa Cartel's power structure. His life, marked by opulence, violence, and constant danger, ended abruptly in a hail of gunfire.

Biography and Profile:

• Full Name: Eliseo Imperial Castro (also referred to in some reports as Eliseo Imperial López).
• Aliases: "Cheyo Antrax," "El Cheyo," "El 5."
• Date of Birth: 1984 (Approximate).
• Place of Birth: Mexico.
• Cartel Affiliation: Sinaloa Cartel.
• Family Connection: Nephew of Ismael "El Mayo" Zambada García, the co-founder and long-time leader of the Sinaloa Cartel.
• Role in Cartel: High-ranking member and leader within the "Los Ántrax" enforcement unit.
• U.S. Status: U.S. fugitive, wanted by U.S. authorities.
• Date of Death: October 2023 (Recent and confirmed).
• Place of Death: Culiacán, Sinaloa, Mexico.
• Cause of Death: Assassination (Shot dead in a truck).

The Rise of Los Ántrax and Cheyo's Role as a Top Enforcer

Cheyo Antrax gained notoriety as a prominent member of Los Ántrax, one of the most feared and disciplined enforcement units within the Sinaloa Cartel. This group was essentially the private army and security detail for Ismael "El Mayo" Zambada and his associates.

What Was Los Ántrax?

Los Ántrax was not a separate cartel but a specialized hit squad and enforcer unit for the Sinaloa Cartel. They were known for their military-style training, high-tech weaponry, and ruthless efficiency in carrying out assassinations, protecting key cartel members, and fighting rival organizations. The unit's name is said to be derived from the deadly disease anthrax.

Cheyo's position was cemented by his family ties to "El Mayo" Zambada, but his authority was earned through his actions on the ground. He was considered a high-level operator, responsible for maintaining control and order in key territories for the Zambada faction of the cartel. His activities, like those of other high-profile narcos, were frequently a subject of intense coverage by *Blog del Narco*, which often published uncensored details, photos, and videos of cartel conflicts and executions.

The unit was also famous for the extravagant and public lifestyle of its members, often flaunting their wealth and power on social media—a practice that, ironically, often led to their identification and capture.

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The Shocking Assassination and Alleged Betrayal by 'El Mayo'

The most significant and recent development concerning Cheyo Antrax is his death. In October 2023, Eliseo Imperial Castro was found shot dead inside a white Chevrolet Colorado truck in Culiacán, Sinaloa. The location, Culiacán, is the heartland of the Sinaloa Cartel and a city essentially controlled by the organization, making the killing particularly brazen and indicative of a high-level internal directive.

The Theory of Internal Purge

While the initial news was simply a high-profile narco assassination, the true shock came from the subsequent reports and allegations surrounding who ordered the hit. Multiple sources, including U.S. prosecutors and reports published by *El Blog del Narco*, suggest that the order to kill Cheyo Antrax came directly from his own uncle, Ismael "El Mayo" Zambada.

This allegation of betrayal has become the focal point of the "Cheyo Antrax" story. The purported motive for the killing was a deep-seated suspicion and fear of disloyalty. One U.S. prosecutor alleged that "El Mayo" ordered the murder after learning that Cheyo was collecting money without his authorization, essentially skimming profits or operating too independently.

The murder of a relative, especially one of Cheyo's rank and connection, underscores the ruthless and paranoid nature of drug cartel leadership. Even the closest family ties are secondary to power and control within the hierarchy of the Sinaloa Cartel. This event highlights the ongoing, often hidden, power struggles within the organization, especially following the capture of Joaquín "El Chapo" Guzmán, which left "El Mayo" as the undisputed, yet increasingly isolated, leader.

The Legacy of Cheyo Antrax in the Narco-Culture Landscape

Cheyo Antrax's life and death perfectly encapsulate the themes often explored by *Blog del Narco*—the intersection of immense power, extreme violence, and inevitable tragedy. His story is a powerful example of the "narco-lifestyle," which is romanticized in *narcocorridos* (drug ballads) but ends violently in reality.

The coverage of his death by the blog and other media outlets serves as a chilling reminder of the volatility of life in the drug world. It provided the public with a rare glimpse into the internal mechanisms of the cartel, confirming that loyalty is transient and that an internal purge is always a possibility, even for family members.

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Topical Authority and Key Entities

The narrative of "Cheyo Antrax" is deeply entwined with several key entities and concepts critical to understanding the Mexican Drug War:

• Ismael "El Mayo" Zambada: The patriarch and alleged betrayer.
• Los Ántrax: The powerful enforcement unit he helped lead.
• Sinaloa Cartel: The overarching criminal organization.
• Culiacán, Sinaloa: The cartel's operational base and the scene of his murder.
• Joaquín "El Chapo" Guzmán: The former co-leader whose absence created a power vacuum.
• Narcocorridos: The musical genre that often glamorizes figures like Cheyo.
• Blog del Narco: The citizen journalism platform that documents these events.
• Eliseo Imperial López: Cheyo's father, also a figure in the cartel.

The story of Cheyo Antrax, as told through the lens of *Blog del Narco*, is a critical piece of modern narco-history. It confirms that the greatest danger to a high-ranking cartel member often comes not from rival groups or law enforcement, but from within their own ranks.