Poplar men plead guilty to sexual abuse on the Fort Peck Indian Reservation

GREAT FALLS - A pair of Poplar men who sexually abused their victim on the Fort Peck Indian Reservation admitted to charges this week, U.S. Attorney Kurt Alme said.

Chandler Duran Longtree, 19, and Payton Robert Richard Montclair, 19, each pleaded guilty to one count of sexual abuse. Each defendant faces life imprisonment, a $250,000 fine, and 5 years to a lifetime of supervised release.

Chief U.S. District Judge Brian M. Morris presided and will determine any sentence after considering the U.S. Sentencing Guidelines and other statutory factors. Longtree's sentencing was set for January 14, 2026. Montclair's sentencing was set for January 21, 2026. Both defendants were detained pending further proceedings.

The government alleged in court documents that on January 18, 2025, Jane Doe was drinking with a group of young people. She eventually separated from her friend and went with the defendants, Chandler Longtree and Payton Montclair, both 18 at the time, to Longtree's house. While at the house, she was sexually assaulted by Longtree and Montclair. Doe reported the assault and underwent an exam from a Sexual Assault Nurse Examiner (SANE), which revealed evidence consistent with a sexual assault.

Assistant U.S. Attorney Kalah Paisley prosecuted the case. The FBI and Fort Peck Tribes Department of Law and Justice conducted the investigation.

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