POCATELLO, ID — Two Montana residents have been sentenced to federal prison after pleading guilty to conspiring to distribute methamphetamine and fentanyl, the U.S. Attorney’s Office for the District of Idaho announced Monday.

Carson Lee Maynard, 49, of Livingston, Montana, received a 180-month sentence, while Amy Marie Tillman, 43, of Lewistown, Montana, was sentenced to 70 months. Both were also ordered to forfeit a residence in Livingston, which had been used to facilitate their drug trafficking activities.

According to court records, the case began when an Idaho State Police trooper stopped the pair’s vehicle for a window-tint violation. A search uncovered five pounds of methamphetamine and 3,000 fentanyl pills hidden inside a spare tire. Investigators said Maynard and Tillman were returning to Montana from New Mexico and Las Vegas after obtaining large quantities of drugs, which they intended to sell in Montana.

Maynard has a prior federal conviction for conspiracy to distribute methamphetamine in the District of Montana. In addition to their prison terms, Senior U.S. District Judge B. Lynn Winmill ordered Maynard to serve five years of supervised release and Tillman to serve three years following incarceration. Both defendants entered guilty pleas in May 2025.

The investigation involved multiple agencies, including the U.S. Marshals Service, Idaho State Police, the Missouri River Drug Task Force–HIDTA in Montana, and the Montana Highway Patrol. Special Assistant U.S. Attorney Zoie Laggis prosecuted the case.

Officials noted the case was handled through the Eastern Idaho Partnership Special Assistant U.S. Attorney (EIP SAUSA) program, which has prosecuted more than 240 defendants since 2016, with the majority facing drug trafficking charges. According to the U.S. Attorney’s Office, those prosecuted under the program have collectively received sentences totaling more than 1,000 years in federal prison.