Pine Ridge Man Sentenced for Conspiracy to Distribute a Controlled Substance

RAPID CITY - United States Attorney Alison J. Ramsdell announced today that U.S. District Judge Karen E. Schreier has sentenced a Pine Ridge, South Dakota, man convicted of Conspiracy to Distribute a Controlled Substance. The sentencing took place on April 24, 2023.

Isaac Mathews, 41, was sentenced to five years in federal prison, followed by four years of supervised release, and ordered to pay a $100 special assessment to the Federal Crime Victims Fund.

Isaac Mathews was indicted for Conspiracy to Distribute a Controlled Substance by a federal grand jury in October of 2022. He pleaded guilty on January 25, 2023.

On May 10, 2022, law enforcement had contact with Mathews and recovered a firearm, along with a distributable amount of methamphetamine. Between 50 grams and 200 grams of methamphetamine were distributed during the course of the conspiracy.

This case was investigated by the Badlands Safe Trails Drug Enforcement Task Force, which is comprised of agents from the FBI, South Dakota Division of Criminal Investigation, Bureau of Indian Affairs Division of Drug Enforcement, Martin Police Department, and the Oglala Sioux Tribe Department of Public Safety. Assistant U.S. Attorney Kathryn N. Rich prosecuted the case.

Mathews was immediately remanded to the custody of the U.S. Marshals Service.