HSTF Investigation: Six Charged with Drug Trafficking in Oregon
Trafficked Methamphetamine and Cocaine
Methamphetamine and cocaine seized during the investigation.
PORTLAND, Ore.— Six defendants were charged for their roles in a drug trafficking organization. The six defendants below were charged by a second superseding information on April 29, 2026, with conspiracy to distribute and possess with intent to distribute controlled substances, distribution of methamphetamine and cocaine, and possession with intent to distribute methamphetamine and cocaine:
- Rafael Mora Contreras, 44, of Forest Grove, Oregon;
- Cristina Echeverria, 42, of Forest Grove, Oregon;
- Nathalie Claire Buchanan, 28, of Bend, Oregon;
- Charles Ottis Johnson, 37, of Bend;
- Mariano Perez-Sanchez, 42, of Forest Grove, Oregon; and
- Dagoberto Ayala-Lopez, 38, of Hillsboro, Oregon.
According to court documents, in July 2025, the Drug Enforcement Administration (DEA) Portland District Office, Oregon State Police (OSP) and Clackamas County Sheriff’s Office began investigating a methamphetamine and cocaine supplier in Forest Grove operated and run by Perez-Sanchez. Perez-Sanchez worked as a drug dispatcher and took orders from retail level distributors.
Johnson and Buchanan were drug trafficking partners who routinely purchased large amounts of methamphetamine in the Portland and Salem area to sell in the Bend area. On February 11, 2026, Echeverria, a courier for Perez-Sanchez, delivered a large quantity of methamphetamine to Buchanan at a hotel. Buchanan and Johnson were pulled over by police. Officers located over 4 pounds of methamphetamine in the car. Investigators reviewed text messages during the drug deal with Johnson and Buchanan showing further evidence of drug trafficking.
On February 17, 2026, Echeverria and Mora Contreras, driving separate cars, were both pulled over by OSP troopers after an overnight trip to California to re-supply drugs. OSP troopers located 28 pounds of methamphetamine and 6 kilograms of cocaine in Echeverria’s car.
Ayala-Lopez worked as a drug courier for Perez-Sanchez. Ayala-Lopez’s vehicles and residence were searched pursuant to search warrant and investigators located over 2 kilograms of methamphetamine.
DEA is investigating the case with assistance from OSP and Clackamas County Sheriff’s Office. Assistant U.S. Attorney Lewis Burkhart is prosecuting the case.
This arrest is part of the Homeland Security Task Force (HSTF) initiative established by Executive Order 14159, Protecting the American People Against Invasion. The HSTF is a whole-of-government partnership dedicated to eliminating criminal cartels, foreign gangs, transnational criminal organizations, and human smuggling and trafficking rings operating in the United States and abroad. Through historic interagency collaboration, the HSTF directs the full might of United States law enforcement towards identifying, investigating, and prosecuting the full spectrum of crimes committed by these organizations, which have long fueled violence and instability within our borders. In performing this work, the HSTF places special emphasis on investigating and prosecuting those engaged in child trafficking or other crimes involving children. The HSTF further utilizes all available tools to prosecute and remove the most violent criminal aliens from the United States. HSTF Portland comprises agents and officers from FBI, HSI, DEA, USMS, IRS-CI, ATF, USPIS, CBP, TSA, U.S. Coast Guard, Oregon Air, Army National Guard Counterdrug program, and Oregon-Idaho HIDTA with the prosecution being led by the United States Attorney’s Office for the District of Oregon.
