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Mexican Involved in a Two-Year, Multimillion-Dollar Drug Trafficking Laundering Scheme

Posted on April 8, 2026

A Mexican national pleaded guilty Wednesday to taking part in a two-year, multimillion-dollar trade-based money laundering scheme that funneled drug trafficking proceeds from the United States to Mexico, federal authorities said.

Quick facts:

  • Defendant: Gabriel Arturo Castillo, 52, of Monterrey, Nuevo León, Mexico
  • Charge: Conspiracy to commit trade-based money laundering
  • Scheme duration: Approximately two years
  • Method: Black-market peso exchange using cross-border goods purchases
  • Locations: Multiple U.S. cities; Laredo, Texas; Mexico
  • Purpose: Move cartel drug proceeds without physically transporting cash

Mallet of judge in American courtroom. American flag in courtroom with Judge hammer or Mallet of judge. Justice concept in courtroom.Castillo pleaded guilty to conspiracy to commit money laundering and is scheduled to be sentenced July 7. He faces up to 20 years in federal prison. 

According to court documents, Castillo participated in a sophisticated international conspiracy designed to transfer proceeds from illegal drug sales in the United States to cartels in Mexico without moving bulk cash across the border.

The operation relied on a black-market peso exchange system. Conspirators collected large amounts of U.S. currency from drug sales in cities across the country. The cash was either deposited into bank accounts or transported to Laredo, Texas.

From there, the funds were sold to business owners in Mexico, who used the U.S. dollars to purchase goods from American retailers, including perfume suppliers. The merchandise was then shipped from Laredo into Mexico.

Mexican business operators repaid the value of the U.S. currency by transferring pesos to drug trafficking organizations in Mexico, allowing cartel members to receive profits in local currency while concealing the illicit origin of the funds, authorities said.

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COURT INFORMATION LINKS:

US SUPREME COURT FEDERAL COURT WEBSITE LINKS FBI PRESS RELEASES / MOST WANTED CIA PRESS RELEASES / LIBRARY DEPARTMENT OF JUSTICE / PRESS RELEASES FEDERAL TRADE COMMISSION: HOW TO HIRE A LAWYER FEDERAL COUNTER TERRORISM GUIDE AMERICAN COURTHOUSE INFORMATION

NEWS SOURCES:

THE GUARDIAN CNN NEWS COURTHOUSE NEWS SERVICE THE NEW REPUBLIC HUFFINGTON POST CBS NEWS MSNBC NEWS MEDIA MATTERS FOR AMERICA CENTER FOR PUBLIC INTEGRITY NPR NEWS INSTITUTE FOR FREE SPEECH BBC ROLLING STONE FACTCHECK.ORG

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