Sioux Falls Man Sentenced to Nearly 11 Years in Federal Prison for Armed Robbery of a Sioux Falls Convenience Store

SIOUX FALLS - United States Attorney Alison J. Ramsdell announced today that U.S. District Judge Karen E. Schrier has sentenced a Sioux Falls, South Dakota, man convicted of Interference with Commerce by Means of Robbery and Possession of a Firearm in Furtherance of a Crime of Violence. The sentencing took place on November 25, 2024.

Bryan Louis Archambeau, 21, was sentenced to 10 years and 10 months in federal prison, followed by three years of supervised release, and ordered to pay a $200 special assessment to the Federal Crime Victims Fund.

Archambeau was indicted for Interference with Commerce by Means of Robbery; Possession of a Firearm in Furtherance of a Crime of Violence; and Felon in Possession of a Firearm by a federal grand jury in December 2023. He pleaded guilty to Interference with Commerce by Means of Robbery and Possession of a Firearm in Furtherance of a Crime of Violence in July 2024.

In the evening of November 2, 2023, Archambeau went to the 49'er Marathon C-Store in Sioux Falls wearing a medical mask. He entered the store and took two cases of Twisted Tea and exited the store without paying for the items. When confronted about the theft, Archambeau lifted his shirt, brandished a pistol, and then left the scene.

Then, in the evening of November 3, 2023, Archambeau went to the Freedom Valu Center in Sioux Falls. He placed two-12 packs of Twisted Tea on the counter and pulled out a pistol from his waistband. He pointed it at the clerk, racked the slide of the pistol, and demanded money. Archambeau then left the scene.

This case is part of Project Safe Neighborhoods (PSN), a program bringing together all levels of law enforcement and the communities they serve to reduce violent crime and gun violence, and to make our neighborhoods safer for everyone. On May 26, 2021, the Department launched a violent crime reduction strategy strengthening PSN based on these core principles: fostering trust and legitimacy in our communities, supporting community-based organizations that help prevent violence from occurring in the first place, setting focused and strategic enforcement priorities, and measuring the results.

This case was investigated by the Bureau of Alcohol, Tobacco, Firearms and Explosives and the Sioux Falls Police Department. Assistant U.S. Attorney Elizabeth A. Ebert-Webb prosecuted the case.

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