Department of Justice

United States Attorney Ron Parsons announced that a Sturgis, South Dakota, man has been sentenced by Chief Judge Jeffrey L. Viken, U.S. District Court, for the November 2017 armed robbery of the Phillips 66 Speedy Mart in Spearfish.

Matthew Wainman, age 26, pleaded guilty to Interference with Commerce by Robbery and Conspiracy to Violate 18 U.S.C. § 924(c) on March 29, 2019. He was sentenced on July 22, 2019, to 57 months in federal prison, followed by 3 years of supervised release, and ordered to pay a $200 special assessment to the Federal Crime Victims Fund.

Two other co-defendants in this case were previously sentenced. David Jackson Jr., age 25, of Sturgis, pleaded guilty to Use and Brandishing of a Firearm During the Commission of a Crime of Violence. He was sentenced on November 30, 2018, to 7 years in federal prison. Adam Peters, age 22, of Belle Fourche, pleaded guilty to Interference with Commerce by Robbery and Use and Brandishing of a Firearm During the Commission of a Crime of Violence. He was sentenced on December 17, 2018, to 10 years in federal prison.

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 make our neighborhoods safer for everyone. The Department of Justice reinvigorated PSN in 2017 as part of its renewed focus on targeting violent criminals, directing all U.S. Attorney’s Offices to work in partnership with federal, state, local, and tribal law enforcement and local communities to develop effective, locally-based strategies to reduce violent crime.

This case was investigated by the Bureau of Alcohol, Tobacco, Firearms, and Explosives and the Spearfish Police Department. Assistant U.S. Attorney Benjamin Patterson prosecuted the case.

Wainman was immediately turned over to the custody of the U.S. Marshals Service.

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