The U.S. Attorney’s Office reported that a man from Tucson, Arizona, was sentenced to federal prison for his role in a multistate scheme that trafficked fentanyl and methamphetamine to South Dakota.
Francisco Siquieros-Valenzuela, 32, better known as “Pancho,” was sentenced to 14 years in federal prison and five years of supervised release.
According to prosecutors, Siquieros-Valenzuela was a member of a narcotics conspiracy that included people from Mexico, Arizona, and South Dakota. The group mostly imported fentanyl and methamphetamine and transported them from Arizona to South Dakota. Prosecutors alleged that over 10,000 fentanyl tablets were shipped into the state.
“We found this guy in Tucson,” U.S. Attorney Ron Parsons stated. “He was sourcing fentanyl and methamphetamine out of Mexico, packaging it up, and sending it our way to poison our communities.”
In September 2025, a federal grand jury accused Siquieros-Valenzuela for conspiracy to distribute a prohibited drug. He pled guilty on May 20, 2026.
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