United States Drug Enforcement Administration

SAN ANTONIO – A San Antonio man pleaded guilty in a federal court in San Antonio to three fatal and one non-fatal overdoses.

According to court documents, Mark Elliot Stool, 67, supplied substances containing combinations of methamphetamine and fentanyl, and methamphetamine and heroin, to four individuals between August 2021 and March 2022. He was arrested following a traffic stop in June 2022 and found to be in possession of a substance that tested positive for both methamphetamine and fentanyl.

Stool pleaded guilty to three counts of distribution of a controlled substance resulting in death and one count of distribution of a controlled substance resulting in serious bodily injury. He is scheduled to be sentenced on July 17 and faces 20 years to life in prison. A federal district court judge will determine any sentence after considering the U.S. Sentencing Guidelines and other statutory factors.

Drug Enforcement Administration Special Agent in Charge Daniel C. Comeaux, Houston Division and U.S. Attorney Jaime Esparza of the Western District of Texas made the announcement.

The Drug Enforcement Administration, University of Texas at San Antonio Police Department, San Antonio Police Department, Bexar County Sheriff’s Office, Castle Hills Police Department are investigating the case.

Assistant U.S. Attorneys Amy Hail and William Calve are prosecuting the case.