Federal Inmate Convicted of Committing Sexual Assault in Federal Transfer Center

OKLAHOMA CITY – A federal jury has convicted JOSEPH FRANCIS BUTLER, 34, of Illinois, of committing aggravated sexual abuse at the Federal Transfer Center (FTC) in Oklahoma City, announced U.S. Attorney Robert J. Troester.

On July 17, 2024, a federal Grand Jury charged Butler with aggravated sexual abuse. On March 14, 2025, after a 4 day-trial, a federal Jury found Butler guilty of the charge. According to evidence presented at trial, on June 4, 2023, Butler, an inmate at the FTC, entered the cell of another inmate and sexually assaulted him. During the sexual assault, Butler held a shank to the victim’s neck and side. The victim soon after reported the assault to a corrections officer.

At sentencing, Butler faces up to life in federal prison, and a fine of up to $250,000.

This case is the result of an investigation by the Federal Bureau of Prisons’ Special Investigative Service. Assistant U.S. Attorneys Tiffany Edgmon and Brandon Hale are prosecuting the case.

Reference is made to public filings for additional information.