The gunman behind Thursday morning’s deadly shooting rampage in Washington, D.C., has been identified as an emergency room physician who was locked in a bitter legal battle over alleged black mold and water damage inside his $1.1 million luxury condominium.
Dr. Matt Lambert was identified as the suspected shooter who killed one person and wounded four others near VIDA Fitness in the capital’s Logan Circle neighborhood on November 12. The violence ended when Lambert fatally shot himself inside his seventh-floor apartment as police attempted to negotiate his surrender.
Investigators are now examining whether the deadly confrontation stemmed from Lambert’s longstanding dispute with the homeowners association at the Metropole condominium building, located at 1515 15th Street NW.
According to court records, Lambert filed a lawsuit against the Metropole Condominium Association in March 2025, alleging that construction work and exterior renovations caused serious moisture problems inside his penthouse.
The physician claimed the property had been damaged by water intrusion and mold contamination, leaving portions of his expensive residence uninhabitable. The dispute reportedly continued for months before Thursday’s deadly confrontation.
Lambert’s complaints extended beyond the courtroom. An X account linked to the physician, operating under the name “Of Mice and Mold,” documented his grievances about the building’s management and alleged deteriorating living conditions.
The account featured photographs appearing to show mold contamination and repeated complaints about renovations, maintenance problems and the condominium association’s handling of his concerns.
According to the New York Post, Lambert had been battling the association over problems he attributed to construction work at the property.
The violence erupted around 8 a.m. Thursday when a gunman entered VIDA Fitness, located on the ground floor of the condominium complex, and fatally shot a man during the busy morning workout period.
D.C. Councilmember Brooke Pinto indicated that investigators believed the initial victim was specifically targeted because of an ongoing legal disagreement involving the suspect.
“We believe the suspect walked into Vida to target somebody that he had been in active litigation with, over a condo issue,” Pinto told NBC Washington.
Dr. Matt Lambert
Authorities said four additional people were wounded as the gunman fled the gym. One surviving victim was critically injured, while three others suffered injuries described as non-life-threatening.
Lambert subsequently retreated to his seventh-floor apartment, where heavily armed officers surrounded the building and attempted to establish communication.
Metropolitan Police Department Interim Chief Jeffery Carroll said the suspect fired through a door at responding officers before negotiators managed to contact him by telephone.
After approximately an hour, officers heard a gunshot from inside the residence. They entered and discovered the suspect suffering from an apparently self-inflicted gunshot wound. He was pronounced dead.
The shooting prompted a massive emergency response involving local police and federal authorities. Nearby streets were closed, and schools in the surrounding neighborhood implemented precautionary security measures.
Lambert’s professional background made the allegations particularly startling. His website described him as a board-certified emergency physician with more than two decades of clinical experience, including previous positions at major hospitals in New York and Seattle.
D.C. Mayor Muriel Bowser condemned the violence, describing herself as devastated by the loss of life. Authorities continue investigating the precise circumstances surrounding the attack, including whether the condominium dispute directly motivated the shooting.
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[ H/T Trending Politics ]
