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First Fentanyl Trafficker Sentenced in ‘Operation Killer High’ Gets 14 Years



Abel Lozano, 29, of Sanger, received a 14-year prison sentence on Monday, Oct. 2, 2023, in Fresno federal court. (GV Wire File)
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Abel Lozano, 29, of Sanger, received a 14-year prison sentence on Monday in Fresno federal court for trafficking fentanyl and methamphetamine.

Lozano’s sentence was the first among 14 people who have pleaded guilty to fentanyl or cocaine distribution stemming from the “Operation Killer High” investigation.

According to court documents, after a series of overdoses in the Fresno area caused by counterfeit oxycodone M30 tablets containing fentanyl, an investigation began to find the drug dealers.

Operation Killer High uncovered a large trafficking ring led by Horacio Torrecillas Urias Jr., the self-proclaimed “M30 king of Fresno.”

Prosecutors said that in February 2022 investigators learned that Urias planned to deliver several thousand fentanyl pills to Lozano.

Two days later, federal officers searched Lozano’s home and found about a kilogram of fentanyl analogue, more than a kilogram of fentanyl mixture, about a kilogram of meth, more than 3 kilograms of marijuana, and a small amount of cocaine.

During an interrogation, Lozano admitted that the drugs were his and that he was buying and reselling them in large quantities, including to customers in other states.

Lozano and 17 others were indicted by a federal grand jury in 2022.

Waiting to Be Sentenced

Marvin Carreno, 24, of Fresno, pleaded guilty Monday to possession with intent to distribute more than 40 grams of fentanyl. He is scheduled for sentencing by U.S. District Judge Jennifer L. Thurston on Feb. 12, 2024.

The following co-defendants have pleaded guilty to fentanyl or cocaine distribution charges and also await sentencing:
• Henry Cox, Sanger;
• Justin Riddle, Las Cruces, New Mexico;
• Erica Ramirez,  Alejandro Guzman,  Agustin Hernandez, Christian Harris-Blanchette, Oscar Jaramillo-Cortez, Jacob Valles, Cody Fyfe, Juan Valencia Jr., Amadeo Sarabia Jr., and Alex Garcia, all of Fresno.

Charges Pending Against M30 King of Fresno

The office of U.S. Attorney Phillip A. Talbert said Monday that charges are pending against Horacio Torrecillas Urias Jr. and three other defendants.

This case is the product of an investigation by the Fentanyl Overdose Resolution Team, a unit composed of officers from Homeland Security Investigations, the Drug Enforcement Administration, and the Fresno and Clovis police departments

Assistant U.S. Attorneys Justin J. Gilio and Laurel J. Montoya are the prosecutors.

Bill McEwen is news director and columnist for GV Wire. He joined GV Wire in August 2017 after 37 years at The Fresno Bee. With The Bee, he served as Opinion Editor, City Hall reporter, Metro columnist, sports columnist and sports editor through the years. His work has been frequently honored by the California Newspapers Publishers Association, including authoring first-place editorials in 2015 and 2016. Bill and his wife, Karen, are proud parents of two adult sons, and they have two grandsons. You can contact Bill at 559-492-4031 or at Send an Email

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