SPRINGFIELD — A 24-year-old Amherst man pleaded guilty Monday in federal court after he made violent threats on social media targeting law enforcement officers, a grocery store and a federal building.
Luke Brissie pleaded guilty to one count of interstate transmission of threatening communications, more than a year after he was arrested and charged last June.
In April 2025, Brissie sent numerous threatening messages to a Metropolitan Nashville Police Department officer on Instagram, addressing the officer as “Mr. dead man.” He threatened to bomb the officer’s patrol vehicle or home, shoot the officer, kill another Nashville police officer, commit a mass stabbing at a grocery store near his home in Massachusetts and bomb an FBI building, according to an announcement Friday from U.S. Attorney Leah B. Foley and Ted E. Docks, special agent in charge of the FBI’s Boston Division.
“I will put a bomb in your police car or better yet your house,” Brissie wrote in an Instagram message. “I’m going to commit mass stabbing at a grocery store called Big [] Y…” and “… then I’ll bomb an FBI building.”
Despite having messaged the officer “you won’t find out where I live,” police arrested Brissie at his Amherst home in June 2025 after the officer reported his threats.
Officers learned that Brissie intended to lure the Nashville officer to Massachusetts to carry out the violent acts he threatened. Investigators also learned of Brissie’s intentions to bomb the FBI Boston Field Office and conduct a mass stabbing at the Big Y grocery store.
The charge of interstate transmission of threatening communications carries a maximum sentence of up to five years in prison, three years of supervised release and a fine of up to $250,000.
U.S. District Judge Mark G. Mastroianni scheduled sentencing for Jan. 5, 2027. Brissie remains in federal custody.
