Federal authorities said the investigation, called Operation Cold Route, led to the seizure of more than 300 pounds of methamphetamine — the largest meth seizure in Kentucky history. Investigators also seized fentanyl, ecstasy, cocaine, 10 firearms, about $25,000 in cash and a boat that authorities allege was bought with drug proceeds.

The investigation began in September 2025, when the U.S. Postal Inspection Service intercepted a package shipped from Los Angeles to Louisville containing 4.2 pounds of meth, according to prosecutors. That package led investigators to Zelos Fields and Chauncey Ransom, according to a criminal complaint.

Prosecutors allege Fields flew from California to Louisville in March and arrived at a short-term rental in northeast Louisville carrying five large duffel bags. Ransom allegedly rented the property. Agents searched it five days later and found 257 pounds of meth in the bags, prosecutors said. Investigators also allege Fields had made three earlier trips to Louisville in 2025.

Five people were indicted on drug-trafficking charges, and eight others were indicted on money-laundering charges. Charles Taylor and Austin Redd were among those named in the drug counts. The allegations have not been proven in court.

Investigators allege proceeds from drug sales were sent to suppliers in Los Angeles through Zelle and bank wire transfers. U.S. Attorney Kyle Bumgarner said investigators followed the money as well as the drugs. Authorities identified Fields as the alleged leader and said prosecutors are seeking mandatory minimum sentences of 15 years for Fields and Ransom because of prior felony convictions.

Federal officials said the case involves a Mexican drug-trafficking organization and illustrates Louisville’s role as a distribution point for drugs moving from the West Coast into Kentucky. The FBI and Homeland Security Investigations led the probe. Authorities described it as the third major federal drug bust announced in Louisville this year.