Clan del Golfo member sentenced to 150 months for his role in a cocaine trafficking conspiracy, a federal court announced.
According to court filings, Aimer Alberto Alvaran Posada, 52, of Colombia, held a senior position within the Western Bloc of Clan del Golfo, a Colombian paramilitary and transnational criminal group that the Department of State designated on Dec. 16, 2025, as a Foreign Terrorist Organization and a Specially Designated Global Terrorist. Prosecutors said the organization finances its activities through cocaine trafficking.
In 2018, Alvaran Posada joined other members to produce 500 kilograms of cocaine for sale to Mexican buyers, knowing and intending that the drugs were bound for the United States. Court records state he secured approval from the commander of the group’s Northern Bloc, where the deal was to occur, and led several meetings to coordinate the transaction. Roughly 363 kilograms of cocaine were seized in the operation that ended in his conviction.
While the conspiracy was underway, former group leader Dairo Antonio Úsuga David informed Alvaran Posada he was under consideration to command the Western Bloc, which would have given him authority over a broad network of subordinates, control of cocaine pricing, and decision-making power over who could produce and transport cocaine in that territory. Instead, he was arrested in 2021 on U.S. charges, extradited to the United States, and later pleaded guilty to cocaine trafficking conspiracy on Aug. 27, 2025.
Clan del Golfo member sentenced after multinational investigation
Assistant Attorney General A. Tysen Duva of the Justice Department’s Criminal Division and Special Agent in Charge Brett Skiles of the FBI Miami Field Office announced the sentence. The FBI Miami Field Office led the investigation, with significant support from the Colombian National Police, the FBI’s Office of the Legal Attaché in Bogotá, and the Justice Department’s Office of the Judicial Attaché in Bogotá and Office of International Affairs.
Trial Attorney Douglas Meisel of the Criminal Division’s Money Laundering, Narcotics and Forfeiture Section prosecuted the case. The Office of International Affairs provided additional assistance.
Officials noted that the Money Laundering, Narcotics and Forfeiture Section focuses on dismantling drug cartels, disrupting international money laundering networks, and protecting the U.S. financial system through prosecutions and asset recovery actions. Its Narcotic and Dangerous Drug Unit targets senior leadership of international drug cartels and related transnational criminal organizations.
Authorities said the case falls under the Homeland Security Task Force initiative established by Executive Order 14159, Protecting the American People Against Invasion. The task force unites agencies to combat criminal cartels, foreign gangs, and transnational criminal organizations operating in the United States and abroad, with particular emphasis on crimes involving children and the removal of the most violent criminal aliens.
The task force unites agencies to combat criminal cartels, foreign gangs, and transnational criminal organizations operating in the United States and abroad, with particular emphasis on crimes involving children and the removal of the most violent criminal aliens.
The FBI Miami Field Office’s role in the investigation aligns with broader federal efforts documented in the FBI 2025 Active Shooter Incidents report on threats to public safety. The Justice Department’s Criminal Division continues to coordinate with international partners through the Criminal Division to address transnational organized crime.