Dallas, Texas – Federal authorities have secured a significant prison sentence in a fentanyl trafficking case tied to a broader national enforcement effort targeting dangerous drug networks.
U.S. Attorney Jay R. Combs announced that 29-year-old Marvin Alexander Portillo of Dallas has been sentenced to more than 12 years in federal prison. Portillo pleaded guilty to conspiracy to possess with intent to distribute fentanyl and was sentenced to 151 months in prison on March 31, 2026, by U.S. District Judge Amos L. Mazzant III.
According to evidence presented in court, Portillo became a target during a drug trafficking investigation in June 2023. Authorities were investigating the distribution of fentanyl-laced pills across the Eastern District of Texas. During the investigation, Portillo was identified as part of a larger operation and later admitted his role in a conspiracy that distributed at least 400 grams of a substance containing fentanyl in the region…