A Mexican national pleaded guilty in federal court in Florence on Tuesday to leading a drug-trafficking organization that the U.S. Attorney’s Office said funneled more than 120 pounds of cocaine, fentanyl and heroin into Horry County, related to Mexican drug trafficking Horry County, over a six-year span.
Rafael Contreras Ramos, 40, of Mexico, admitted to conspiring to distribute controlled substances, a charge that carries a mandatory minimum of 10 years and a maximum of life in federal prison. The U.S. Attorney’s Office for the District of South Carolina said Contreras will be deported to Mexico after he serves his sentence. No sentencing date has been set. U.S. District Judge Joseph F. Dawson III accepted the plea.
According to the press release, Contreras led an organization that operated primarily out of Tucson, Arizona, with ties to Las Vegas, Burlington, North Carolina, and Horry County. Prosecutors said the network was supplied by a Mexican drug-trafficking organization. The press release does not name the specific cartel.
The U.S. Attorney’s Office said evidence at the plea hearing showed Contreras and his associates moved more than 55 kilograms of narcotics into South Carolina for further distribution between 2016 and 2022. That figure, roughly 120 pounds, breaks down to more than 40 kilograms of cocaine, 14 kilograms of fentanyl and about 1 kilogram of heroin, according to the release.
Understanding the Impact of Mexican Drug Trafficking Horry County
The organization and the volumes
Prosecutors said the organization collected more than $5 million in drug-sale proceeds during the conspiracy. Horry County served as a distribution endpoint, with product moving from the Tucson hub through intermediate ties in Nevada and North Carolina before reaching the Grand Strand.
The U.S. Attorney’s Office said the organization began moving drugs into Horry County at least as early as 2016. Federal charges in 2022 disrupted the operation, and Contreras fled to Mexico, where he remained a fugitive until his extradition.
A 2021 investigation and a 2025 extradition
The case began with a joint federal-local investigation in 2021, the U.S. Attorney’s Office said. FBI Columbia identified the Contreras organization as a source of supply for narcotics flowing into Horry County and built the case alongside the Horry County Sheriff’s Office, the Myrtle Beach Police Department and the Horry County Police Department.
A federal grand jury in Florence returned an indictment in 2022 charging Contreras with distribution of cocaine and heroin and with money laundering. Contreras had already left the United States for Mexico by the time the indictment was unsealed, and he remained a fugitive for nearly three years.
Contreras was extradited from Mexico on Feb. 14, 2025, and arraigned the next day in Florence, court records show. The plea entered Tuesday came roughly 16 months after that arraignment. In the months before the plea, defense counsel filed a motion to dismiss on Sixth Amendment speedy-trial grounds. Judge Dawson did not rule on the motion before Contreras entered his plea, court filings show.
Assistant U.S. Attorney Everett McMillian prosecuted the case for the District of South Carolina. McMillian serves as lead Task Force Attorney for the Organized Crime Drug Enforcement Task Force in the district. The case was investigated jointly with state and local agencies in Horry County, and the U.S. Attorney’s Office said the federal-local partnership was the mechanism that allowed agents to trace the supply chain back to its operational hub in Arizona.
Statements from federal officials
U.S. Attorney Bryan P. Stirling, whose office issued the release, framed the plea as a win for public safety in South Carolina. “Dismantling drug organizations like this makes South Carolina safer,” Stirling said in the release, according to the U.S. Attorney’s Office. The release added that the defendant “played a direct role in flooding Horry County with illegal drugs.”
Stirling was confirmed by the U.S. Senate on Dec. 18, 2025, on a 53-43 vote. He previously served more than a decade as director of the South Carolina Department of Corrections before his nomination by President Donald Trump. He succeeded Adair Ford Boroughs, who left the office in February 2025.
FBI Columbia Special Agent in Charge Kevin Moore also commented in the release, crediting the multi-agency partnership for tracing the supply chain back to its operational hub. The U.S. Attorney’s Office said the FBI led the federal side of the investigation.
The Homeland Security Task Force frame
The U.S. Attorney’s Office said the case was prosecuted under the Homeland Security Task Force initiative, a federal interagency structure established by Executive Order 14159, which President Trump signed on Jan. 20, 2025. The order, titled “Protecting the American People Against Invasion,” was published in the Federal Register on Jan. 29, 2025.
According to U.S. Department of Justice and FBI announcements, the Homeland Security Task Force is co-led by Homeland Security Investigations and the FBI. It operates through 30 regional task forces and 29 satellite offices covering every state, the District of Columbia and Puerto Rico, with a national coordination center in Fairfax, Virginia. The task force’s stated threat categories include narcotics and contraband trafficking, human trafficking, weapons trafficking, financial crimes, transnational gangs and intelligence fusion operations.
The investigation that produced the Contreras plea began in 2021, four years before the task force structure existed. The Homeland Security Task Force framing in the release reflects the current prosecutorial lens for an investigation that predates the executive order. The U.S. Attorney’s Office in the District of South Carolina has applied the same framing to other recent cases, including a 26-defendant Lowcountry gang-trafficking indictment announced earlier in the task force’s first year.
The Horry County toll
The 14 kilograms of fentanyl attributed to the Contreras organization represent a public-health risk on a scale that South Carolina law enforcement and state health officials have warned about for years. Federal prosecutors said the volume seized in the case could have produced millions of potentially lethal doses. The Drug Enforcement Administration considers two milligrams of fentanyl a potentially lethal dose, depending on a user’s body size, tolerance and prior exposure — a ratio that places 14 kilograms in the range of millions of doses.
Statewide, fentanyl was involved in 1,550 of South Carolina’s 2,157 overdose deaths in 2023, the latest year of finalized data from the state Department of Public Health. That marked a 6.1 percent decline from 2022 and the first year-over-year drop in more than a decade. Provisional 2024 figures from the federal Centers for Disease Control and Prevention indicate the decline accelerated, with an estimated 1,475 South Carolina overdose deaths — about a one-third drop from 2023.
Horry County has not tracked the statewide improvement evenly. The county was among 15 of South Carolina’s 46 counties to record an increase in overdose deaths in 2023, according to DPH reporting, and has ranked first in opioid deaths and second in opioid-related hospitalizations statewide in recent years. Horry recorded 77 opioid overdoses in 2017; by 2021, that figure had risen to 212, a 175 percent jump over four years. The county has also ranked among the top counties in the state for Narcan administrations by emergency responders, according to state health department figures.
The six-year window covered by the Contreras conspiracy — 2016 through 2022 — overlaps directly with the period in which Horry County’s opioid overdose totals climbed fastest. The indictment does not attempt to assign specific overdose deaths to the organization, and federal prosecutors do not typically pursue distribution-resulting-in-death enhancements without direct evidentiary links. But the volumes alleged in the plea — 14 kilograms of fentanyl distributed over six years — give a sense of the inventory flowing into the county during the worst years of the local opioid surge.
What happens next
A sentencing date for Contreras has not been set. The U.S. Probation Office will prepare a presentence report before Judge Dawson schedules sentencing. The statutory range remains a mandatory minimum of 10 years and a maximum of life. Federal sentencing guidelines, which the court must consider but is not bound by, will produce a recommended range that prosecutors and defense counsel will contest in written filings before the hearing.
The U.S. Attorney’s Office said Contreras will be deported to Mexico after he completes his sentence. Removal of a noncitizen following a federal felony conviction is processed by U.S. Immigration and Customs Enforcement under standard detainer procedures, and the timing depends on the Department of Homeland Security’s removal process at the end of any prison term.
The investigating agencies named in the release — FBI Columbia, the Horry County Sheriff’s Office under Sheriff Phillip Thompson, the Myrtle Beach Police Department under Interim Chief Chris Smith, and the Horry County Police Department under Chief Kris Leonhardt — have not issued separate statements on the plea.
The road ahead
The Contreras plea closes the prosecution phase of a case that, by the U.S. Attorney’s Office’s own account, traced a single supply line from the Arizona-Mexico border corridor to neighborhoods on the Grand Strand. Sentencing will set the term, but it will not by itself answer the question that matters most to Horry County: what replaced the Contreras network after the 2022 indictment disrupted it, and whether the federal-and-local partnership that brought him to a Florence courtroom can apply the same model to whoever filled the gap.
Further Reading
Mexican drug trafficking Horry County – U.S. Attorney’s Office, District of South Carolina — press release on the Rafael Contreras Ramos guilty plea (June 2, 2026): https://www.justice.gov/usao-sc
Mexican drug trafficking Horry County – U.S. Attorney’s Office, District of South Carolina — earlier release on the extradition of Rafael Contreras Ramos: https://www.justice.gov/usao-sc/pr/mexican-national-extradited-face-drug-and-money-laundering-criminal-charges
Mexican drug trafficking Horry County – Federal Register — Executive Order 14159, “Protecting the American People Against Invasion” (Jan. 29, 2025): https://www.federalregister.gov/documents/2025/01/29/2025-02006/protecting-the-american-people-against-invasion
Mexican drug trafficking Horry County – Homeland Security Task Force national website: https://hstf.gov/
Mexican drug trafficking Horry County – South Carolina Department of Public Health — 2023 overdose death statistics: https://dph.sc.gov/
Mexican drug trafficking Horry County – U.S. Drug Enforcement Administration — fentanyl fact sheet and lethal-dose guidance: https://www.dea.gov/resources/facts-about-fentanyl
Mexican drug trafficking Horry County – Centers for Disease Control and Prevention — National Vital Statistics System provisional overdose data: https://www.cdc.gov/nchs/nvss/vsrr/drug-overdose-data.htm
Mexican drug trafficking Horry County – Federal Bureau of Investigation, Columbia Field Office: https://www.fbi.gov/contact-us/field-offices/columbia
