A gunman killed one person and wounded four others before dying by suicide following a standoff in Washington, DC, on Thursday, November 13, 2026.
The violence erupted at approximately 8am in and around Vida Fitness in the Logan Circle neighborhood, roughly 1.5 kilometers north of the White House. Police said the assailant first shot a man inside the gym, then targeted four additional people at a nearby construction site and in the lobby of the apartment building situated directly above the fitness center.
Following the shootings, the gunman retreated to a unit on the seventh floor of the residential building, which authorities believe was his home. A small fire broke out in the structure during the incident and was quickly contained by emergency responders.
Jeffery Carroll, the intern chief of the DC Metro police, said that the shooter had been locked in a bitter dispute with property management. “We do know there was a conflict between him and the home owners association of that building,” Carroll said, adding that investigators were examining the root of the disagreement.
US media outlets identified the gunman as Matt Lambert. Public records on an X account linked to Lambert, titled “Of Mice and Mold,” showed frequent complaints regarding persistent maintenance failures in his penthouse apartment, including months without functional amenities.
“Two years of living in luxury (and the start of 6 months with no shower, dryer, HVAC, and cooking),” Lambert posted on Wednesday. On Thursday morning, around the time the gunfire began, another post stated: “My manifesto is an engineering report,” accompanied by a link detailing building grievances.
The surrounding blocks were cordoned off with police tape as tactical units responded. Nearby schools and the Australian embassy on 16th Street were placed on lockdown as a security precaution, though shelter-in-place orders for diplomatic staff were later lifted. DC Mayor Muriel Bowser confirmed that the White House had been immediately briefed on the security situation.
James Spellman was inside the gym when the attack started. “Within seconds there was a man who fell to the ground, and a pool of blood came out,” he told The Sydney Morning Herald.
“One gym member rushed to help him. He was instantly dead. He had been shot in the neck.” Spellman reported hearing roughly two shots inside the facility and five or six more outside near 15th Street as he and other patrons fled.
Another local resident, Ryan Dubicki, heard the initial commotion from his nearby apartment. “They were really spread out so I thought it was construction,” he said, noting that police vehicles flooded the street shortly afterward.
Vida Fitness notified members that the Logan Circle branch would remain closed until further notice, expressing condolences to those impacted by the violence.
Negotiators attempted to resolve the standoff before the gunman shot himself inside the apartment unit, succumbing to his injuries at the scene.
