A Boston man associated with the Mission Hill gang was sentenced to 71 months in federal prison on Tuesday after pleading guilty to multiple charges, including firearms trafficking, bank fraud, and orchestrating a large-scale mail theft scheme. Glenroy Miller, also known as “Trinny,” will also serve three years of supervised release following his prison term.
U.S. District Court Judge Nathaniel M. Gorton handed down the sentence after Miller admitted guilt in May 2025 to several offenses: three counts of being a felon in possession of a firearm and ammunition; unlawful possession of a machinegun; trafficking in firearms; two counts of conspiracy to commit bank fraud; one count of bank fraud and aiding and abetting; and conspiracy to steal and possess stolen mail.
Miller’s criminal history includes a 2019 conviction in Suffolk Superior Court for firearms offenses and resisting arrest, which led to a three-year state prison sentence followed by probation. While serving this sentence, Miller worked with Nadaje Hendrix—then a loan officer at a credit union—to defraud the institution by obtaining loans under false names, including those of fellow inmates and stolen identities. The fraudulent activity resulted in losses totaling about $134,000. Both were indicted by a federal grand jury in January 2024. Hendrix was sentenced in October 2024 to eight months in prison and three years’ supervised release after her guilty plea.
After his release from state custody in 2023 but before his federal indictment, Miller became involved with other Mission Hill gang members in what authorities described as a “card cracking” operation targeting U.S. Postal Service collection boxes. This scheme involved stealing checks from the mail, chemically altering them to erase payee information, rewriting them with new names—often those recruited via social media—and depositing them into various accounts for withdrawal or transfer once funds cleared. Authorities estimate that between June 2023 and February 2024, Miller was responsible for $250,000 to $550,000 in actual or attempted losses through these activities. In August 2024, he was indicted along with eight others for their roles in this operation.
During the same period while on probation, Miller sold six firearms—including one equipped with a high-capacity magazine and machinegun conversion device—to an individual cooperating with law enforcement on four occasions between August and October 2023. He knew that the buyer was legally prohibited from possessing firearms due to felony convictions.
“United States Attorney Leah B. Foley; Ted E. Docks, Special Agent in Charge of the Federal Bureau of Investigation, Boston Division; Bryan DiGirolamo, Acting Special Agent in Charge of the Bureau of Alcohol, Tobacco, Firearms & Explosives, Boston Field Division; Ketty Larco-Ward, Inspector in Charge of the United States Postal Inspection Service, Boston Division; and Randy Maloney, Special Agent in Charge of the U.S. Secret Service, Boston Field Office made the announcement.”
The case received assistance from local police departments as well as Assistant U.S. Attorneys Kriss Basil, Lucy Sun and Philip C. Cheng.
The investigation was conducted under the Organized Crime Drug Enforcement Task Forces (OCDETF), which uses an intelligence-driven approach involving multiple agencies to target major criminal organizations nationwide. More information about OCDETF can be found at https://www.justice.gov/OCDETF.
