Serda's convictions and life sentence
U.S. District Judge Tilman E. "Tripp" Self III sentenced Serda, 28, and Muckle, 52. The U.S. Attorney's Office for the Middle District of Georgia said the three investigations involved more than 200 kilograms of methamphetamine, fentanyl and cocaine, as well as multiple seized firearms. Assistant U.S. Attorney Mike Morrison is prosecuting all three cases.
A seven-day trial ended July 8 with Serda's conviction. Prosecutors attributed to him the distribution of more than seven kilograms of fentanyl and 50 kilograms of methamphetamine around Athens from January 2024 through May 2025. Investigators described him as a supplier for the Mexican cartel Cartel Jalisco Nueva Generación, or CJNG.
The verdict covered a drug conspiracy, four fentanyl distribution counts, two methamphetamine distribution offenses and a firearms offense. Prosecutors said a minor was present at the premises where one of the methamphetamine offenses took place.
Court records describe a WhatsApp exchange during Serda's arrest on Aug. 26, 2025. As FBI SWAT agents arrived at his home, he alerted Mexico-based supplier Alicio Yanez-Pineda, known as "Cochito," to the FBI's presence. Serda told him to have a truck carrying narcotics for delivery that day "turn around."
Prosecutors also pointed to Serda's 2015 conviction for threatening a police officer. Those threats included having cartel associates harm the officer's family.
The same trial produced convictions for Gregory Robinson, 32, of Athens, on charges of conspiracy to distribute controlled substances, distributing fentanyl, possessing fentanyl and oxycodone with intent to distribute, and maintaining a drug-involved premises. Another defendant, Ariel Collins, 32, of Athens, was acquitted of one count of maintaining a drug-involved premises.
Muckle's cocaine operation
Muckle, who also used the name "Lando," admitted possessing cocaine with intent to distribute when he pleaded guilty Aug. 6. Investigators said his cocaine came through sources associated with the Gulf Cartel and was distributed around Athens.
Surveillance and controlled purchases helped investigators document the operation. The FBI identified a cocaine storage apartment on Jennings Mill Parkway and a separate apartment on Macon Highway where drug transactions took place. Investigators used a confidential source to make several controlled cocaine purchases.
July 2025 searches yielded 26 kilograms of cocaine. Muckle acknowledged that he planned to distribute it.
His case involved a separate six-defendant indictment, Case No. 3:25-CR-00020. According to the Drug Enforcement Administration, it alleged that a conspiracy beginning in October 2020 involved the distribution of more than 400 grams of fentanyl and more than five kilograms of cocaine and cocaine base in the Athens region.
After completing his 30-year prison term, Muckle must serve 10 years of supervised release. Federal parole is not available to either Muckle or Serda.
Methamphetamine allegedly concealed in cabbages
Perez-Mondragon, 30, a Mexican national from Queretaro, faces a drug conspiracy charge, possession with intent to distribute methamphetamine and two firearms charges. One firearms count alleges possession while unlawfully present in the United States. Prosecutors accuse him of belonging to a drug trafficking group connected to a transnational criminal organization.
Investigators said they saw Perez-Mondragon distributing drugs at a Deer Creek Court residence in Athens during surveillance in November 2025. A later search of the home yielded more than 100 kilograms of methamphetamine and multiple firearms.
The alleged concealment method involved putting methamphetamine inside cabbages wrapped in green cellophane. Investigators said each package held about one kilogram of the drug and shipments contained as many as 300 packages, each weighing about one kilogram, or approximately 2.2 pounds.
Perez-Mondragon appeared Nov. 5 before U.S. Magistrate Judge Charles Weigle. He remains in federal custody awaiting trial and is subject to an immigration detainer.
The broader Athens investigation
Serda's prosecution grew out of a larger federal case announced on Aug. 26, 2025. According to the DEA, the U.S. Attorney for the Middle District of Georgia announced two indictments and a criminal complaint charging 17 people in an alleged armed drug trafficking network operating in the Athens area. Authorities made 13 arrests and carried out 12 search warrants in Athens and Atlanta that day.
The DEA reported that the operation yielded 26 firearms, including 12 rifles and a grenade launcher found at a Jefferson location. Authorities also seized 26 kilograms of cocaine valued at about $780,000 and 1.7 kilograms of fentanyl valued at about $60,000.
Other seizures in that operation included roughly 500 grams of methamphetamine, 5.14 ounces of crack cocaine, 2.4 pounds of marijuana, 128 controlled pharmaceuticals and $63,532 in cash.
Task force reports results across Georgia and Alabama
The three cases fall under the Homeland Security Task Force initiative against cartels and transnational criminal organizations. Participating investigators came from the FBI, DEA, Homeland Security Investigations, Athens-Clarke County Police Department, Georgia Bureau of Investigation and Georgia Department of Community Supervision.
FBI Atlanta Special Agent in Charge Marlo Graham said cartel-connected trafficking organizations "pose a serious threat to our communities, fueling violence and putting lives at risk through the distribution of deadly drugs and the proliferation of illegal firearms."
At a Nov. 6, 2026, announcement marking the task force's first year targeting cartel-linked drug trafficking in Georgia, Graham reported 354 arrests over the preceding 13 months, according to 11Alive. The task force, which covers Georgia and Alabama, seized roughly 10,000 kilograms of cocaine, 143 kilograms of fentanyl, 1,600 kilograms of methamphetamine and 447 firearms. Those totals cover its work in both states, not just the three Athens cases.
The DEA also places the prosecutions within Operation Take Back America. The agency describes that nationwide Department of Justice initiative as bringing DOJ resources together to combat illegal immigration, eliminate cartels and transnational criminal organizations, and target violent crime.
Athens-Clarke County Police Chief Jerry Saulters credited interagency cooperation for the investigations' results. "The distribution of fentanyl, methamphetamine, and cocaine brings violence, addiction, and significant harm to our communities," he said. Saulters said his department would continue working with federal and local agencies to dismantle trafficking networks and protect the community.
