U.S. authorities filed an official memorandum requesting that Omar Treviño Morales, alias Z-42, the former leader of Los Zetas, be held under strict confinement measures. The request comes after it was revealed that the Mexican drug lord directly threatened a prison officer, claiming to have the ability to locate him through his criminal network in Mexico.
The incident, reported by the prosecution, occurred on November 2, 2025, at the Alexandria Adult Detention Center (ADC) in Virginia, while Treviño Morales was awaiting trial after being extradited from Mexico in February of that year.
According to the Alexandria ADC report, Treviño Morales confronted a guard in Spanish, using intimidating information to demonstrate his reach outside of prison:
The defendant mentioned that the officer “liked Doberman Pinschers” and claimed to have enough information to locate his home address.
When the officer questioned him about how he would obtain such information, “Z-42” boasted of leading 3,000 people in Mexico and declared, “Give me a month and I’ll find out everything about you.”
Due to this behavior, authorities determined that the ADC did not have the necessary security to house an inmate of his dangerousness, resulting in his immediate transfer to the Federal Correctional Institution (FCI) in Lewisburg, Pennsylvania.
Omar Treviño’s defense has challenged this transfer, arguing that the conditions in Pennsylvania violate the Sixth Amendment (right to an effective defense). The lawyers point to three main obstacles:
The prison is located more than three and a half hours from the courthouse in Washington, D.C., and from law offices.
Visits are only permitted through plexiglass barriers, which makes it difficult to review evidence and documents.
Special Administrative Measures (SAMs) almost completely restrict his contact with the outside world.
The Department of Justice (DOJ) has been adamant in responding that the isolation is a direct consequence of the inmate’s dangerousness. Washington maintains that Treviño Morales “created the conditions he now complains about” by threatening prison staff.
The prosecution argues that allowing visits with physical contact would represent an unacceptable risk to institutional security, especially given the lack of sufficient personnel to supervise a high-value target linked to organized crime, money laundering, and large-scale drug trafficking.
Omar Treviño Morales assumed command of Los Zetas after the capture of his brother, Miguel Ángel Treviño Morales (“El Z-40”). Under his leadership, the organization solidified its reputation as one of the most violent criminal networks on the continent. Currently, both brothers face charges in federal court in Washington, D.C., under the scrutiny of Judge Trevor McFadden, who will decide whether the drug lord remains in isolation in Pennsylvania or is returned to a local prison.
