A brutal assault on a Tribal Corrections Officer has landed a Lower Brule man in federal prison.
Leighton Laroche, Jr., 42, was sentenced to five months in federal prison, followed by two years of supervised release, and ordered to pay a $100 special assessment to the Federal Crime Victims Fund.
The sentencing took place on October 9, 2025, in Pierre, South Dakota.
Laroche was convicted of Assaulting, Resisting, and Impeding a Federal Officer, stemming from an incident that occurred on January 19, 2024, when he was in custody at the Lower Brule Detention Center.
Laroche engaged in a physical struggle with a Bureau of Indian Affairs correctional officer after he refused to return to his cell as directed.
The case was investigated by the Bureau of Indian Affairs, Office of Justice Services – Lower Brule Agency.
Laroche was immediately remanded to the custody of the U.S. Marshals Service.
The U.S. Attorney’s Office in South Dakota announced the sentencing, with no further comment.
This is a developing story and will be updated as more information becomes available.
Defendant’s Name: Leighton Laroche, Jr.
Criminal Charges: Assaulting, Resisting, and Impeding a Federal Officer
City and State: Pierre, South Dakota
Date: October 9, 2025 (sentencing), January 19, 2024 (crime date)
Sentence: 5 months in federal prison, followed by 2 years of supervised release
Dollar Amounts: $100 special assessment to the Federal Crime Victims Fund
Key Facts
- State: South Dakota
- Category: Violent Crime
- Source: DOJ Press Release â†â€â€
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