A man identified by law enforcement sources as Dr. Matt Lambert, 52, opened fire Thursday morning at a gym inside the Metropole Condominiums in Washington, D.C. Police stated that Lambert killed at least one person and wounded four others before retreating to his unit, where he died by suicide. The shooting took place at the Vida Fitness center located on the ground floor of the building in the Logan Circle neighborhood.
Investigators recovered three firearms from Lambert’s apartment following the incident. Prior to the shooting, Lambert, a medical doctor and CEO of a healthcare consultancy, had been involved in a legal dispute with the Metropole Condominium Association and EJF Real Estate Services regarding the condition of his unit. D.C. tax records show Lambert purchased the condo for $1,095,000 in September 2016.
Witnesses described a scene of chaos as gym members evacuated past the site of the shooting. One resident, who lived directly below Lambert, reported that the gunman had become increasingly upset during Homeowners Association (HOA) meetings and had invited neighbors to view what he claimed was significant disrepair in his apartment. Following a fire at the scene during the police response, at least one neighboring unit was reported to be under an inch of water.
Social media posts linked to Lambert on the platform X, under the handle @OfMiceandMold, detailed extensive complaints regarding mold and water damage. In one post, Lambert referred to an engineering report as his "manifesto." He also referenced "delay, deny, defend," a phrase associated with the 2024 killing of UnitedHealthcare CEO Brian Thompson, to describe the HOA's handling of his complaints.
The scale of the underlying dispute involved a lawsuit in which Lambert sought more than $290,000 in damages as of May. This figure highlights the financial stakes involved in the litigation over the alleged mold and water issues. For the other 98 unit owners in the building, the event marks a violent conclusion to a conflict regarding building maintenance and management responsibilities.
The shooting may influence how property management companies and HOAs handle maintenance disputes and resident grievances. In court filings, the Metropole Condominium Association and EJF Real Estate Services denied responsibility for the damage, attributing it to third parties and alleging Lambert failed to mitigate his losses. As of the report, the gym remained a crime scene. Police have not released the names of the other victims.