articleThe Brief Two North Texas men were each sentenced to over 11 years in federal prison for running a drug trafficking scheme. Federal agents seized a firearm used to protect a Dallas drug distribution house during a multi-agency investigation. Two North Texas men have been sentenced to more than 11 years in federal prison after pleading guilty to their roles in a fentanyl trafficking conspiracy. Dallas and Plano men sentenced in federal fentanyl schemeWhat we know:28-year-old Heath Darrian Denson, of Dallas, pleaded guilty to conspiracy to distribute and possess with intent to distribute fentanyl. During a search of the residence, investigators found a firearm that authorities said was used to further the drug trafficking operation.