Mexican National Pleads Guilty to Laredo Money Laundering Scheme

Scheme funneled drug proceeds through local businesses to Mexico

Apr. 12, 2026 at 5:35pm

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An extreme close-up photograph of a stack of cash bills, partially obscured by shadows, with a harsh, direct camera flash creating a stark, gritty, investigative aesthetic.This money laundering case exposes the complex web of cross-border financial schemes used by drug cartels to conceal the origins of their illicit profits.Laredo Today

Gabriel Arturo Castillo, a 52-year-old Mexican national, pleaded guilty to his role in a multimillion-dollar money laundering scheme that funneled drug proceeds through Laredo businesses to Mexico. Castillo participated in the scheme from 2011 to 2013, using Laredo as a central hub to convert drug money into seemingly legitimate cross-border trade.

Why it matters

This case highlights the ongoing challenge of combating money laundering along the U.S.-Mexico border, where criminal organizations exploit legitimate businesses to conceal the origins of drug profits. The scheme's reliance on a 'black market peso exchange' demonstrates the sophisticated tactics used to move illicit funds across the border.

The details

Castillo was responsible for handling drug proceeds and directing how the money moved through the network. In Laredo, he received bulk cash and arranged for it to be delivered to local businesses or deposited into accounts he controlled. He also directed that deposits be broken into amounts under $10,000 to avoid federal reporting requirements. Between March 2012 and early 2013, he directed more than $350,000 into bank accounts.

  • Castillo participated in the scheme from at least October 2011 through early 2013.
  • A federal grand jury indicted Castillo and others in 2017 on money laundering and related charges.
  • Authorities arrested Castillo in Mexico and extradited him to the United States in August 2025.
  • Castillo pleaded guilty to conspiracy to commit money laundering in a plea agreement filed on April 7, 2026.

The players

Gabriel Arturo Castillo

A 52-year-old Mexican national who pleaded guilty to his role in a multimillion-dollar money laundering scheme that funneled drug proceeds through Laredo businesses to Mexico.

Drug Enforcement Administration (DEA)

The federal agency that investigated the money laundering scheme along with the IRS Criminal Investigation.

IRS Criminal Investigation

The federal agency that investigated the money laundering scheme along with the DEA.

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What’s next

Castillo is scheduled to be sentenced by U.S. District Judge Marina Garcia Marmolejo on July 7, 2026. He faces a maximum sentence of 20 years in federal prison.

The takeaway

This case demonstrates the sophisticated tactics used by criminal organizations to launder drug proceeds across the U.S.-Mexico border, underscoring the ongoing efforts by law enforcement to disrupt these illicit financial networks and hold perpetrators accountable.