Shannon Louise Grove, age 53, was sentenced on March 31 to five years in federal prison for distributing fentanyl that resulted in an overdose death, according to First Assistant United States Attorney Pete Serrano. United States District Judge Rebecca L. Pennell also ordered Grove to serve six years of supervised release after her prison term.
Grove’s sentencing follows a case that highlights the ongoing impact of fentanyl in local communities. Authorities say her actions contributed directly to the loss of life and underscore efforts by law enforcement and prosecutors to address the spread of dangerous drugs.
Court documents show that Grove had been a longtime drug distributor in the Lewiston, Idaho and Clarkston, Washington area. She had prior convictions for possession with intent to deliver methamphetamine in both Asotin County, Washington and Nez Perce County, Idaho. In October 2024, she distributed fentanyl to a man from Lewiston who later died from an overdose. Investigators used phone records and other data to confirm her involvement before she was indicted by a Grand Jury on June 4, 2025; she pled guilty on December 30, 2025.
“Fighting the scourge of fentanyl is a priority for the Department of Justice and for the United States Attorney’s Office for the Eastern District of Washington,” Serrano said. “This case embodies the devastating impact illicit fentanyl has on individuals, families, and communities. Our deepest sympathies are with the victim and his family, as well as with all others who have lost loved ones due to fentanyl or other controlled substances. We commend the work of our law enforcement partners who work tirelessly to prevent the introduction of these substances into this district.”
Special Agent in Charge Robert Bohls of the Salt Lake City FBI said: “For years, the defendant helped fuel the addiction crisis, and sadly, that cycle ended in tragedy. The FBI and our partners will hold accountable those who profit from addictions and cause harm in our communities.” The investigation involved multiple agencies including FBI Salt Lake City Field Office’s Lewiston Resident Agency; Lewiston Police Department; Quad Cities Drug Task Force; Clarkston Police Department; Whitman County Sheriff’s Office; among others.
The case was prosecuted by Assistant United States Attorney Rebecca R. Perez.

