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A Billings man who prompted a five-hour standoff with police when he refused to leave his garage in 2016 admitted illegally possessing a dozen firearms.

Jimmy Mark Walker, 36, pleaded guilty on Thursday in U.S. District Court in Billings to being a felon in possession. A second count is to be dismissed at sentencing under a plea agreement.

Assistant U.S. Attorney John Sullivan said in court records that acting on information that Walker, who was on state felony supervision, had firearms, investigators with the federal Bureau of Alcohol, Tobacco, Firearms and Explosives and officers with Montana Probation and Parole went to Walker’s residence on Aug. 24, 2016.

Officers talked to him briefly before he entered a garage in the neighborhood of North 30th Street and 11th Avenue North and closed the door, Sullivan said. Walker refused to come out and a five-hour standoff began at about 8 p.m.

Billings police SWAT officers used a long-range acoustic device, nonlethal shotgun rounds and a negotiator to urge Walker to surrender, which he eventually did, Sullivan said.

During a search of the garage, investigators found 12 firearms, including nine long guns and three handguns. Walker was convicted on a drug charge in Yellowstone County and sentenced in 2010.

Walker faces a maximum 10 years in prison and a $250,000 fine.

U.S. Magistrate Judge Timothy Cavan said he would recommend Walker’s plea be accepted by U.S. District Judge Susan Watters, who will sentence him. Walker remains in custody.



Federal Court, Yellowtone County Reporter

Federal court and county reporter for The Billings Gazette.