SIOUX CITY, Iowa -- Jonathan Seff, age 50, from Sioux City, Iowa, was convicted by a jury on July 9, 2026, after a three-day trial in federal court in Sioux City. Seff was found guilty of conspiracy to distribute a controlled substance, distribution of methamphetamine near a protected location (an...

SIOUX FALLS, S.D. — U.S. Attorney Ron Parsons announced the results of four landmark federal prosecutions in the past year that have systematically dismantled major drug trafficking organizations (DTOs) connected to the Mexican cartels responsible for flooding South Dakota communities with methamphetamine, fentanyl, and other deadly narcotics. Through coordinated, long-term...