Billings Man Sentenced After Leaving Bruises on Girlfriend’s Neck, Face

A Billings man has been sentenced to 20 months in prison after federal prosecutors say he struck his girlfriend multiple times during an argument, leaving her with injuries that required hospital treatment.

According to a press release from the U.S. Attorney's Office, District of Montana, Isaiah Shawn-Sam Glenn, 30, was sentenced Wednesday to 20 months in prison followed by three years of supervised release. Acting U.S. Attorney Mark Steger Smith announced the sentencing. Glenn pleaded guilty in April 2026 to one count of assault resulting in substantial bodily injury to a dating or intimate partner, and U.S. District Judge Susan P. Watters presided over the case.

What Happened in the Lodge Grass Assault Case

Court documents say Glenn assaulted his girlfriend while the two were arguing inside his vehicle in Lodge Grass on Sept. 21, 2025. Big Horn County Sheriff's deputies responded and spoke with the victim, who told them Glenn struck her multiple times.

Injuries and Hospital Treatment

EMTs treated the victim at the scene before she was taken to an area hospital. Doctors diagnosed her with multiple injuries, including bilateral bruising on her neck and scratches on her face, according to the Justice Department's account of the case.

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Who Investigated and Prosecuted the Billings Assault Case

The U.S. Attorney's Office prosecuted the case, and the FBI investigated.