New Hampshire Man Pleads Guilty to Unlawful Delivery of a Firearm

BOSTON – A New Hampshire man pleaded guilty yesterday in federal court in Boston to unlawfully purchasing a semi-automatic pistol for an unlicensed individual. The unlicensed individual was later seen in online videos firing the pistol near a public school and was arrested in connection with a large-scale car theft enterprise.  

Isaiah Johnson, 24, of Merrimack, N.H., pleaded guilty to one count of firearm trafficking by unlawful delivery. U.S. District Court Judge Allison D. Burroughs scheduled sentencing for March 11, 2026. Johnson was arrested and charged in June 2025.

In February 2024, Johnson purchased a tan-colored 9-millimeter Glock 19X semi-automatic pistol from a gun store in New Hampshire, for a co-conspirator who was ineligible for a gun license. Johnson ultimately delivered the firearm to the co-conspirator approximately one week later.

In December 2024, the co-conspirator was arrested at his Brockton residence on state charges in connection with an investigation into a high-end car theft enterprise responsible for approximately 63 stolen vehicles worth more than $2.6 million. The firearm Johnson had purchased, as well as two large-capacity magazines, were located during a search of the Brockton residence. Videos posted online show the co-conspirator firing the same firearm while it was equipped with a “selector switch,” rendering it a fully automatic weapon. The video was filmed nearby a public school in Brockton where approximately 43 9-millimeter shell casings and 10 .40 caliber shell casings were later located.

The co-conspirator was later charged in Brockton Superior Court with firearm and other charges in connection with the car theft investigation.

The charge of firearm trafficking by unlawful delivery provides for a sentence of up to five years in prison, up to three years of supervised release and a fine of up to $250,000. Sentences are imposed by a federal district court judge based upon the U.S. Sentencing Guidelines and statutes which govern the determination of a sentence in a criminal case.

United States Attorney Leah B. Foley and Thomas Greco, Special Agent in Charge of the Bureau of Alcohol, Tobacco, Firearms & Explosives, Boston Field Division made the announcement. Valuable assistance was provided by the Massachusetts Attorney General’s Office; Homeland Security Investigations; U.S. Postal Inspection Service; and the Brockton (Mass.), Merrimack (N.H.) and Manchester (N.H.) Police Departments. Assistant U.S. Attorney David Cutshall of the Organized Crime & Gang Unit is prosecuting the case.