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30-Year Sentence for Sexual and Physical Abuse

U.S. Attorney’s Office September 29, 2010
  • District of North Dakota (701) 297-7400

MINOT, ND—United States Attorney Timothy Q. Purdon announced that on September 27, 2010, Monty M. Mariner, 30, of New Town, North Dakota, was sentenced before United States District Court Judge Daniel L. Hovland on charges of sexual abuse, assault resulting in serious bodily injury, and assault with a dangerous weapon. Mariner was found guilty of the charges by a federal jury on June 17, 2010. Judge Hovland sentenced Mariner to 30 years in federal prison, lifetime supervised release, a $300 special assessment to the Crime Victim’s Fund and restitution of $29,300.67.

In November 2009, on the Fort Berthold Indian Reservation, Mariner physically and sexually assaulted a woman inside a motor vehicle after leaving a house party in New Town. The victim suffered life-threatening injuries. An analyst from the North Dakota Crime Lab testified at trial that a mixture of the victim’s and Mariner’s DNA was found on an object located in a garbage can outside Mariner’s residence in the Four Bears Village area of New Town by Bureau of Indian Affairs criminal investigators.

A smaller piece of the same object was located by those investigators inside Mariner’s vehicle. The analyst testified that this piece of the object had the victim’s DNA upon it. Judge Hovland varied upward from the United States Sentencing Guidelines advisory sentencing range of 188 to 235 months, and imposed a sentence of 360 months in prison. In doing so, Judge Hovland noted that the conduct involved was the worst case of sexual abuse he had seen since coming to the bench. He further noted that Mariner had a criminal history of previously abusing the victim.

The case was investigated by the Bureau of Indian Affairs, the Three Affiliated Tribes Police Department, and the Federal Bureau of Investigation.

Assistant United States Attorney Rick Volk prosecuted the case.

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