Source: United States Attorneys General
Aimer Alberto Alvaran Posada, 52, of Colombia, was sentenced today to 150 months in prison for his role in a cocaine trafficking conspiracy.
According to court documents, Alvaran Posada was a high-level member within the Western Bloc of Clan del Golfo (CDG), a Colombian paramilitary and multibillion-dollar transnational criminal organization that was designated on Dec. 16, 2025, by the Department of State as a Foreign Terrorist Organization (FTO) and a Specially Designated Global Terrorist (SDGT). CDG relies on cocaine trafficking to fund its paramilitary activities. In 2018, Alvaran Posada conspired with other CDG members to produce 500 kilograms of cocaine for sale to Mexican buyers, knowing, intending, and having reasonable cause to believe that the cocaine was destined to the United States. Specifically, Alvaran Posada obtained approval from the commander of CDG’s Northern Bloc, where the cocaine transaction would be conducted, and presided over multiple meetings to coordinate the cocaine transaction. Approximately 363 kilograms of cocaine were seized as part of the operation that led to the conviction of Alvaran Posada.
While engaged in this conspiracy, Alvaran Posada was informed by Dairo Antonio Úsuga David — the former leader of CDG — that he was being considered for commanding CDG’s Western Bloc, a promotion that would have given Alvaran Posada control over a vast network of subordinates, the authority to set cocaine prices, and the responsibility to decide who could produce and transport cocaine in his territory. Instead, Alvaran Posada was arrested in 2021 pursuant to his U.S. charges and subsequently extradited to the United States. He pleaded guilty to cocaine trafficking conspiracy on Aug. 27, 2025.
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 made the announcement.
The FBI Miami Field Office investigated the case. The FBI Miami Field Office investigated the case. The Colombian National Police, the FBI’s Office of the Legal Attache in Bogotá , and the Department of Justice’s Office of the Judicial Attaché in Bogotá and Office of International Affairs provided critical support.
Trial Attorney Douglas Meisel of the Criminal Division’s Money Laundering, Narcotics and Forfeiture Section (MNF) prosecuted the case. The Justice Department’s Office of International Affairs provided significant assistance.
MNF’s mission is to take the profit out of crime, eliminate drug cartels, and protect the U.S. financial system. MNF pursues criminal prosecutions and criminal and civil asset recovery actions involving: financial facilitators who launder profits for criminals; financial institutions and their officers and employees whose actions threaten the U.S. financial system and financial institutions; international money launderers who support transnational organized crime; and the top command and control of international drug trafficking organizations.
MNF’s Narcotic and Dangerous Drug Unit investigates and prosecutes the top command and control elements of international drug cartels, drug trafficking organizations and related transnational criminal organizations.
This case is part of the Homeland Security Task Force (HSTF) initiative established by Executive Order 14159, Protecting the American People Against Invasion. The HSTF is a whole-of-government partnership dedicated to eliminating criminal cartels, foreign gangs, transnational criminal organizations, and human smuggling and trafficking rings operating in the United States and abroad. Through historic interagency collaboration, the HSTF directs the full might of United States law enforcement towards identifying, investigating, and prosecuting the full spectrum of crimes committed by these organizations, which have long fueled violence and instability within our borders. In performing this work, the HSTF places special emphasis on investigating and prosecuting those engaged in child trafficking or other crimes involving children. The HSTF further utilizes all available tools to prosecute and remove the most violent criminal aliens from the United States.