Stockton Man Sentenced to over 12 years in Prison for Methamphetamine Trafficking

Walter Garcia-Ruiz, 37, of Stockton, was sentenced Tuesday by U.S. District Judge Kimberly J. Mueller to 12 years and seven months in prison for his role in a conspiracy to possess and distribute methamphetamine, Acting U.S. Attorney Kimberly A. Sanchez announced.

According to court documents, between May 2019 and December 2020, Garcia-Ruiz joined a conspiracy to traffic methamphetamine with Jesus Horacio Ramirez Hernandez, 37; of El Monte, and Stockton residents Fernando Aldama Tinoco, 51; Geovany Espinoza Norzagaray, 36; and Neftali Castillo Montes, 44. During this conspiracy, Montes sold an FBI confidential source more than 14 pounds of methamphetamine. Surveillance, wiretaps, and additional investigation uncovered Garcia-Ruiz, Norzagaray, Tinoco, and Hernandez as higher-level distributors. Garcia-Ruiz personally supplied at least 10.9 pounds of this methamphetamine. A search of a storage unit controlled by Tinoco resulted in the seizure of 33 pounds of methamphetamine, 7 pounds of cocaine, and 2 pounds of counterfeit M30 pills containing fentanyl.

This case is the product of an investigation 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 prosecuting the case.

Montes was sentenced on April 15, 2025, to five years in prison for his role in this conspiracy. Hernandez pleaded guilty for his role on June 24, 2025, and is scheduled to be sentenced by Judge Mueller on Oct. 21, 2025. Hernandez faces a maximum statutory penalty of life in prison and a $10 million fine. The actual sentence, however, will be determined at the discretion of the court after consideration of any applicable statutory factors and the Federal Sentencing Guidelines, which take into account a number of variables.

Charges are pending against co-defendants Tinoco and Espinoza. The charges against them are only allegations; they are presumed innocent until and unless proven guilty beyond a reasonable doubt. If convicted, the defendants Tinoco and Espinoza also face a maximum statutory penalty of life in prison and a $10 million fine. Any sentence, however, would be determined at the discretion of the court after consideration of any applicable statutory factors and the Federal Sentencing Guidelines, which take into account a number of variables.

This effort is part of an Organized Crime Drug Enforcement Task Forces (OCDETF) operation. OCDETF identifies, disrupts, and dismantles the highest-level criminal organizations that threaten the United States using a prosecutor-led, intelligence-driven, multi-agency approach. Additional information about the OCDETF Program can be found at www.justice.gov/OCDETF.