Career Offender Sentenced to 10 Years for Mailing Threats to Federal Officials

TUCSON, Ariz. – Charles Morice Gilmore, 52, of Missouri, was sentenced last week by United States District Judge Angela M. Martinez to concurrent statutory maximum sentences of 10 years in prison for Mailing Threatening Communications, and six years for Influencing Federal Official by Threat. Gilmore pleaded guilty to these crimes on October 1, 2024.

Between February 28, 2023, and March 27, 2023, while an inmate at the United States Penitentiary in Tucson, Gilmore mailed letters to a federal judge claiming there were bombs in the courthouse where the victim worked and that the bombs could be remotely detonated. The letters to the judge contained religious slurs and asserted ties to the Hells Angels and the Ku Klux Klan. Gilmore also sent a threatening letter to a federal prosecutor who had previously handled one of his cases. Gilmore attached pipe bomb instructions to that letter. He claimed he had mailed the instructions to others outside the prison to carry out his orders. A third letter from Gilmore to a former cellmate with instructions for making pipe bombs and listing locations where the pipe bombs should be placed was also intercepted.

Gilmore has a lengthy criminal history for violent offenses and is a career offender. Judge Martinez imposed concurrent stipulated sentences of 10 years for each mailing of threatening communications and six years for threatening a federal judge. The sentences will be consecutive to Gilmore’s 10-year federal sentence for mailing threatening communications in 2017; a 10-year sentence for threatening federal officials in 2014; a 90-month sentence in 2013 for mailing threatening communications to a different federal judge; and a 20-year prison sentence for stabbing an inmate in Jefferson City, Missouri in 2018. A separate case against Gilmore for mailing a hoax bomb threat to a state courthouse in Missouri was dismissed as part of the stipulated agreement in this case.

The Federal Bureau of Investigation conducted the investigation in this case. The United States Attorney’s Office, District of Arizona, Tucson, handled the prosecution.

CASE NUMBER:           CR-23-2122-TUC-AMM
RELEASE NUMBER:    2025-020_Gilmore

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