A Mexican national residing illegally in Dallas has been sentenced to federal prison for his role in a cocaine trafficking conspiracy in the Eastern District of Texas, according to an announcement from U.S. Attorney Jay R. Combs.
Tomas Perez-Guerrero, 44, pleaded guilty to conspiracy to possess with intent to distribute cocaine. He received a sentence of 72 months in federal prison from U.S. District Judge Sean D. Jordan on December 8, 2025.
Court documents showed that Perez-Guerrero participated in a scheme to traffic cocaine within the Eastern District of Texas.
The prosecution is part of Operation Take Back America, which is a nationwide initiative led by the Department of Justice aimed at addressing illegal immigration and targeting cartels and transnational criminal organizations.
The Drug Enforcement Administration conducted the investigation. Assistant U.S. Attorney Matthew Johnson prosecuted the case.

