STOCKTON, CA – Walter Garcia-Ruiz, 37, is trading the streets of Stockton for a federal prison cell after being sentenced to 12 years and seven months for his part in a large-scale methamphetamine trafficking operation. U.S. District Judge Kimberly J. Mueller handed down the sentence Tuesday, following a probe that exposed a network of dealers flooding the region with deadly drugs, Acting U.S. Attorney Kimberly A. Sanchez announced.
Court records detail a conspiracy stretching from May 2019 to December 2020, with Garcia-Ruiz working alongside Jesus Horacio Ramirez Hernandez, 37, of El Monte, and Stockton residents Fernando Aldama Tinoco, 51; Geovany Espinoza Norzagaray, 36; and Neftali Castillo Montes, 44. Montes, the initial point of contact, pushed over 14 pounds of methamphetamine to an FBI confidential source. But the investigation quickly revealed a wider web, identifying Garcia-Ruiz, Norzagaray, Tinoco, and Hernandez as the key players moving the product.
Garcia-Ruiz wasn’t just a runner; he was a significant supplier, personally responsible for at least 10.9 pounds of the methamphetamine distributed. The operation took a massive hit when authorities raided a storage unit controlled by Tinoco. The search uncovered a staggering 33 pounds of methamphetamine, alongside 7 pounds of cocaine and a dangerous 2 pounds of counterfeit M30 pills laced with fentanyl – a recipe for overdose and death.
This wasn’t a small-time operation. This case is the result of a collaborative effort by the California Department of Corrections and Rehabilitation, Customs and Borders Protection, the Drug Enforcement Administration, Homeland Security Investigations, the Federal Bureau of Investigation, and the Tracy Police Department. Assistant U.S. Attorney Adrian T. Kinsella is leading the prosecution. The bust highlights the relentless push by federal agencies to dismantle these criminal networks.
Montes already received his punishment – five years in prison after pleading guilty on April 15, 2025. Hernandez, who pleaded guilty June 24, 2025, is awaiting sentencing on October 21, 2025, and faces a potential life sentence and a $10 million fine. While the maximum penalty is steep, the final sentence will depend on a number of factors considered by Judge Mueller. Charges remain pending against Tinoco and Espinoza, who are presumed innocent until proven guilty. They, too, face the possibility of life in prison and a $10 million fine if convicted.
This takedown is part of a larger Organized Crime Drug Enforcement Task Forces (OCDETF) operation, a multi-agency initiative designed to cripple the highest-level criminal organizations threatening the United States. OCDETF utilizes intelligence-driven, prosecutor-led strategies to dismantle these groups from the inside out. More information on the OCDETF Program is available at www.justice.gov/OCDETF. The streets of Stockton are a little less flooded with poison today, but the fight against drug trafficking is far from over.
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Key Facts
- State: California
- Agency: DOJ USAO
- Category: Drug Trafficking|Organized Crime
- Source: Official Source ↗
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