An unidentified man in his 40s was fatally shot inside a Nashville federal courthouse Thursday morning after he allegedly tried to fire a pistol that jammed and then pulled a knife on an officer, police said.

ABC News reported that the confrontation unfolded around 9:30 a.m. at the security checkpoint in the lobby of the Fred D. Thompson Federal Building and Courthouse.

Nashville Metropolitan Police said the man, described as being from out of state, tried to pass through the checkpoint while armed. Investigators said he attempted to fire a pistol, the weapon jammed, and he then allegedly drew a knife and tried to attack an officer. An officer opened fire. The man was taken to a hospital critically wounded and later pronounced dead.

The episode put courthouse security and rapid armed response back in the spotlight for readers who track how officers handle lethal threats in public buildings, including cases such as a Colorado ex-deputy facing charges after gunfire at sheriff and police facilities.

Public Affairs Director Don Aaron laid out the police account at a news conference. He described the checkpoint encounter, the failed pistol shot, the knife attempt, the return fire, and the man’s death. Motive remained under investigation, he indicated.

Police account of the lobby confrontation

Fox News reported Aaron’s description that “the security individual fired on the armed individual,” and that the man was taken to a hospital where he was pronounced dead.

Assistant U.S. Attorney Rob McGuire addressed the breach of courthouse security in plain terms.

"Obviously, someone who is armed and brings a firearm into a federal courthouse is not acceptable, and we're going to have to get to the bottom of what happened and then act accordingly."

Authorities have not publicly named the man. The Washington Examiner reported that police had not identified him and that he was said to be in his 40s and from out of state after he attempted to bypass the checkpoint.

A nearby library was evacuated as the situation unfolded. Investigators also examined a car left near the scene that authorities tied to the man.

Deadly shootings and the police response that follows continue to drive public concern in other cities as well, including when Dublin police arrested an elderly couple after a New York Times games executive was shot dead.

What investigators are examining next

The Tennessee Bureau of Investigation is handling the probe. Nashville Metropolitan Police turned the case over for that independent review after the officer-involved shooting inside the federal facility.

Breitbart reported that the armed man was shot and killed by security Thursday after pulling out a gun in the federal courthouse lobby, that he was around 40 and from outside Tennessee, and that a search of the vehicle found nothing threatening. TBI is leading the investigation, that account added.

Investigators will need to determine the man’s full identity, any planned target or purpose for entering the building armed, and the precise sequence captured on any available security video. Authorities have not publicly confirmed whether officers or bystanders suffered injuries. No public results have been released beyond the basic checkpoint timeline and the fatal outcome for the suspect.

Police work after fatal shootings often turns quickly to identifying suspects and locking down evidence, a pattern also seen when Gaston County authorities named a person of interest after two people were killed and two were critically wounded in a home shooting.

Courthouse security and the legal stakes

Federal courthouses run controlled entry for a reason. Weapons screens and armed officers exist to keep judges, jurors, litigants, and staff safe from sudden violence. Police said this man arrived with both a pistol and a knife and tried to push past that barrier.

When a gun jams and a knife comes out, the window for de-escalation collapses. The officer’s decision to fire ended the immediate threat, according to the police narrative presented by Aaron. The TBI review will test that account against physical evidence and any recordings.

Readers who follow police manhunts after street shootings will recognize the same pressure for fast, clean fact-finding, including cases like the hunt after two people were found shot dead outside a Millville convenience store.

McGuire’s statement framed the institutional response: armed entry into a federal courthouse is unacceptable, and prosecutors and investigators must establish what happened and respond under the law. That posture keeps the focus on evidence rather than speculation.

Active searches for shooters still at large remain a parallel public-safety demand in other jurisdictions, such as when Springfield police hunted for a suspect after one person was shot.

What remains unresolved

Authorities have not publicly confirmed the man’s name or his home state beyond the out-of-state description. They have not detailed how many rounds were fired or released body-camera or lobby video. Motive stays under investigation, with no public claim of a specific target inside the building.

The car search, the TBI lead, and any federal follow-on steps will shape the next phase. For now, the verified core is narrow and stark: an armed man reached the checkpoint, allegedly tried to shoot, switched to a knife when the pistol failed, and was shot dead by security forces protecting the courthouse.

Secure courthouses are not optional. When someone forces a lethal confrontation at the door, the law-and-order test is whether trained officers stop the threat and whether independent investigators then document every step without political spin.