BOSTON – A Massachusetts man pleaded guilty yesterday in federal court in Boston in connection with an ongoing investigation of counterfeit pills containing fentanyl and methamphetamine. Over the course of the past four years, the defendant is alleged to have been responsible for the manufacturing of over 200 kilograms of counterfeit pills.
According to a release from the Massachusetts Department of Justice, Schuyler Oppenheimer, a/k/a “SK,” a/k/a “Michael Sylvain,” 35, of Cambridge pleaded guilty to one count of possession with intent to distribute 500 grams or more of methamphetamine and two counts of wire fraud. U.S. Senior District Court Judge F. Dennis Saylor IV scheduled sentencing for April 17, 2026. In July 2025, Oppenheimer was arrested and charged. He was subsequently indicted in August 2025.
According to court documents, Oppenheimer is known to be technically skilled in the chemical processes used in the synthesis of fentanyl, the compounding of controlled substances for distribution and the manufacturing of counterfeit pills. Recipes, pill press molds used in the manufacturing process, documents and invoices demonstrating that Oppenheimer purchased numerous pill presses and parts for pill presses from online vendors were seized. Multiple packages shipped from China to Oppenheimer, and various female associates of Oppenheimer, that contained pill press parts, were also seized…