Felon Gun Clerk Guilty

⏱ 2 min read

Doug Mulligan, an 80-year-old Massachusetts man and convicted felon, worked at a licensed firearms business in New Hampshire, despite being prohibited from possessing guns. On a recent day in federal court, Mulligan pleaded guilty to illegal firearm possession. He had been warned repeatedly that he couldn’t work in a gun store or own firearms, but he disregarded those warnings. Mulligan’s crimes went beyond just possessing a gun – he used his position to tip off targets of a federal investigation into transnational firearms trafficking, texting them ‘ATF is watching u’.

The investigation, led by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) and Homeland Security Investigations (HSI), in coordination with Canadian law enforcement partners, uncovered a large-scale firearms trafficking operation. Mulligan’s actions not only put the public at risk but also undermined the diligent work of law-abiding firearm licensees who follow the rules to keep guns out of the wrong hands.

Mulligan’s guilty plea is a significant development in the case, which highlights the ongoing efforts of law enforcement agencies to combat firearms trafficking. U.S. Attorney Erin Creegan and ATF Special Agent-in-Charge Thomas Greco emphasized the importance of prosecuting individuals who enable criminals’ access to guns and interfere with law enforcement efforts to protect public safety.

Mulligan’s sentencing is scheduled for July 7, 2026, before U.S. District Judge Joseph N. Laplante. The outcome of the case serves as a reminder of the consequences of disregarding federal law and undermining law enforcement investigations.