Charles Morice Gilmore, a 52-year-old from Missouri, has been sentenced to concurrent statutory maximum terms of 10 years for mailing threatening communications and six years for influencing a federal official by threat. United States District Judge Angela M. Martinez delivered the sentence last week in Tucson, Arizona.

Gilmore pleaded guilty on October 1, 2024, to sending letters between February 28 and March 27, 2023. While an inmate at the United States Penitentiary in Tucson, he sent threatening letters to a federal judge claiming there were bombs in the courthouse where the judge worked. These letters included religious slurs and claimed ties to groups such as the Hells Angels and the Ku Klux Klan.

Additionally, Gilmore sent a letter with pipe bomb instructions to a federal prosecutor who had previously handled one of his cases. He alleged that he had mailed these instructions to individuals outside prison for them to carry out his orders. Another letter intended for a former cellmate containing pipe bomb-making instructions was also intercepted.

Judge Martinez imposed sentences that will run consecutively with Gilmore's previous sentences: a 10-year term for similar offenses in 2017 and another in 2014; a 90-month sentence from 2013; and a separate 20-year term for stabbing an inmate in Missouri in 2018. A case involving mailing a hoax bomb threat to a state courthouse in Missouri was dismissed under the stipulated agreement related to this case.

The Federal Bureau of Investigation conducted the investigation into Gilmore's actions, while prosecution was managed by the United States Attorney’s Office, District of Arizona, Tucson.