Police say Matt Wade Lambert killed a building manager, wounded four other people and later died from a self-inflicted gunshot wound.
WASHINGTON, DC — Police identified a 55-year-old doctor as the gunman in a deadly shooting that began inside a Logan Circle gym Thursday morning and left one man dead and four other people wounded before the suspected shooter died inside his nearby apartment.
The Metropolitan Police Department identified the suspected gunman as Matt Wade Lambert of Northwest Washington and the man killed as James Stuart, 46, also of Northwest Washington. Police said Stuart was the manager of the building where Lambert lived. Investigators believe an ongoing dispute between Lambert and the condominium association’s management over maintenance problems was connected to the shooting, though the investigation remained open Friday.
Police said officers were called at about 7:59 a.m. Nov. 12 to the 1500 block of 15th Street NW after receiving multiple reports of an active shooter. Officers found five people with gunshot wounds. Stuart was pronounced dead at the scene. Two women and two men were taken to hospitals. Authorities said later Thursday that one of the surviving victims was in critical condition while the others were expected to survive.
Interim Metropolitan Police Chief Jeffery Carroll said investigators believe Lambert first shot Stuart inside VIDA Fitness, which operates in the same building as Lambert’s condominium. Lambert then returned to his residence and fired at four other people from a private patio or balcony, police said. Authorities had not established that Lambert knew those four victims.
Carroll said the shooting itself unfolded in less than five minutes. Investigators believe a handgun was used inside the gym and a rifle was used to fire from Lambert’s residence. Police later said they recovered three firearms from his apartment — a handgun, a rifle and a shotgun — and determined that all three had been used during the incident. The department said none of the firearms was registered to Lambert in the District.
Police said Lambert barricaded himself inside the apartment as officers converged on the building. Negotiators communicated with him while tactical officers took positions outside. Authorities said Lambert fired through his apartment door while officers were nearby, but no officers were struck. Police also said he damaged a natural gas line and started a fire inside the apartment. The building’s sprinkler system helped contain the flames.
After negotiators heard a gunshot, tactical officers entered the residence and found Lambert with what police described as an apparent self-inflicted gunshot wound. D.C. Fire and EMS personnel found no signs of life, police said. His body was later taken to the Office of the Chief Medical Examiner.
Investigators said Lambert had been involved in a long-running dispute with the management of his condominium building over conditions in his unit, including alleged mold, moisture and water damage. Court records reviewed by news organizations show that Lambert had pursued civil litigation over the property conditions. Carroll said police believed the dispute was related to the attack, but authorities continued examining the circumstances and had not announced a broader motive beyond that suspected connection.
The morning gunfire prompted a large response from local and federal law enforcement officers and disrupted the normally busy Logan Circle neighborhood. Nearby residents and businesses were told to shelter or avoid the area as officers searched the building and worked to determine whether there was any continuing threat. The immediate danger ended after police entered Lambert’s apartment.
Metropolitan Police said the case remains under investigation as detectives examine the shootings, the firearms recovered from the apartment and Lambert’s dispute with the building’s management. Authorities have not publicly identified the four surviving victims, and police had not announced evidence showing whether Lambert deliberately targeted any of them.
Author note: Last updated November 13, 2026.