A 31-year-old Mesquite man has been sentenced to over 11 years in federal prison for fentanyl trafficking in the Eastern District of Texas, according to U.S. Attorney Jay R. Combs. Arob Kolnyang pleaded guilty to conspiracy to distribute and possession with intent to distribute fentanyl and was sentenced to 135 months by U.S. District Judge Sean D. Jordan on December 17, 2025.
According to court documents, Kolnyang and others conspired to distribute at least 40 grams of fentanyl in the Eastern District of Texas beginning in 2021. This case is part of the Homeland Security Task Force (HSTF) project launched under Executive Order 14159, Protecting the American People from Invasion. The HSTF is a comprehensive alliance dedicated to combating criminal cartels, international gangs, transnational criminal organizations, and human smuggling and trafficking rings operating in the United States and overseas.
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The HSTF focuses on investigating and prosecuting those involved in child trafficking or other crimes against children, and it uses all available means to prosecute and remove the most violent criminal aliens from the United States. The Drug Enforcement Administration, the United States Postal Inspection Service-Office of Inspector General, the Mesquite Police Department, and the Phoenix Police Department all conducted investigations into this matter. Assistant United States Attorneys in the Plano office handled the case.
