Primary source: axios.com

WASHINGTON — Vida Fitness closed its Logan Circle gym until further notice after a shooting Thursday morning in which police said a resident fatally shot the building manager inside the club, wounded four other people from a balcony, then died of a self-inflicted gunshot wound^1,3,4.

Interim Metropolitan Police Chief Jeffery Carroll said officers were called just before 8 a.m. to Vida Fitness at 15th and P streets Northwest, about a mile north of the White House, and arrived within about 30 seconds^3,4,6. NBC Washington put the gym at 1517 15th Street NW, on the ground floor of the Metropole condominium⁷. An earlier Associated Press dispatch, citing police, had said four people were shot and that the public should stay off the 1500 block of 15th Street².

Carroll later said five people were shot in about five minutes: James Stuart, 46, the building manager and a Northwest D.C. resident, was killed inside the gym; two men and two women were wounded outside, one of them in critical condition and three with injuries described as not life-threatening^3,4,6. Police identified the gunman as Matt Wade Lambert, 55, a doctor who lived on the seventh floor of the same building and was a gym member^1,3,6.

Carroll said Lambert used a handgun in the gym, then fired a rifle from a private balcony at people on the ground, including, according to CBS News, members of a construction crew across the street and a person in a lobby or alley^3,4,7. Investigators recovered a handgun, a rifle and a shotgun; Carroll said all three were used and none were registered in the District^3,4.

Lambert then barricaded himself in the unit. Carroll said he fired through the door at officers at least twice, with no officers hurt, broke a gas line on a fireplace, started a fire that sprinklers helped contain, and had gasoline or other flammable material in the apartment^3,4,5. Negotiators spoke with him for about an hour; they heard a gunshot, forced entry and found him with an apparent self-inflicted wound^3,5. MPD said the barricade ended around 11:10 a.m.⁴.

Police said they believe the attack was tied to a long-running dispute with the condominium association over maintenance, including mold^3,4. FOX 5 DC reported court papers showing Lambert sued the Metropole Condominium Association in March 2025 over leaks and mold after 2024 facade work and alleged he had been displaced since November 2024⁶. D.C. Councilmember Brooke Pinto said the building manager was targeted^1,6,7. Carroll said it was not clear whether Lambert knew the four surviving victims^3,4.

Attorney Joel Braithwaite, who represented Lambert in the civil case, told CBS News he was shocked and that Lambert had spent about $300,000 on the dispute and was due to start a new job Monday³. Mayor Muriel Bowser called the shooting a senseless act of gun violence and said the White House had been briefed⁵. Nearby D.C. public schools went on lockdown and later resumed activity before noon; most roads reopened by midday^4,6.

The gym emailed members that the Logan Circle club was closed, asked them not to travel there and told anyone nearby to follow law-enforcement instructions^1,3. How Lambert obtained the guns, names and full conditions of the wounded, and whether the four people shot from the balcony were chosen at random remained unstated in the reports reviewed^3,4,6.