A Spokane resident has been sentenced to 200 months in federal prison for drug trafficking and firearm offenses, according to U.S. Attorney Kurt Alme. Thomas Anthony Biesiadecki, age 30, will also serve five years of supervised release following his prison term.
Biesiadecki pleaded guilty in September 2025 to possession with intent to distribute controlled substances and possession of a firearm in furtherance of a drug trafficking crime. The sentence was handed down by U.S. District Judge Dana L. Christensen.
According to court documents, multiple sources identified Biesiadecki as their main supplier of fentanyl. These individuals reported purchasing thousands of fentanyl pills from him. One source indicated that Biesiadecki made daily trips from Spokane to Missoula between January and mid-summer 2024 to deliver fentanyl pills and powder. Another individual said they bought both fentanyl pills and methamphetamine from him during 2024. Additionally, one source stated that Biesiadecki traveled from Missoula to Butte for the purpose of trading drugs for firearms.
On May 16, 2025, law enforcement searched Biesiadecki’s vehicle in Spokane, Washington, where they found two firearms along with quantities of fentanyl, methamphetamine, cocaine, and cash. During an interview with authorities, Biesiadecki admitted he had distributed drugs and traded them for firearms using the vehicle.
The case was prosecuted by the U.S. Attorney’s Office and investigated by the FBI's Montana Regional Violent Crime Task Force.
"This case is part of Operation Take Back America a nationwide initiative that marshals the full resources of the Department of Justice to repel the invasion of illegal immigration, achieve the total elimination of cartels and transnational criminal organizations (TCOs), and protect our communities from the perpetrators of violent crime," said U.S. Attorney Kurt Alme.
