A dispute over where someone calls home has taken a horrible turn. Now, it’s leaving an entire neighborhood shaken, and authorities are working to piece together what happened. Dr. Matt Lambert, a 55-year-old doctor, is at the center of a tragic series of events. And it turned an otherwise ordinary Thursday morning into a nightmare for several people.
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DC Doctor Matt Lambert Opens Fire At Gym
According to reports, the shooting unfolded around 8 a.m. Thursday in Washington, D.C.’s Logan Circle neighborhood. Lambert allegedly opened fire inside the VIDA Fitness gym, located on the ground floor of his condominium building, fatally shooting building manager James Stuart, 46.
Police say Lambert then returned to his seventh-floor penthouse and fired at four additional people from his patio. One of those victims remained in critical condition later Thursday afternoon. Authorities described the entire incident as unfolding in less than five minutes. An X account linked to Lambert also raised eyebrows after posting at 8 a.m., “My manifesto is an engineering report,” alongside references to the condo’s alleged mold and moisture issues. The account reportedly featured photos and an engineering report documenting his complaints about the penthouse conditions.
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My manifesto is an engineering report pic.twitter.com/B85qOQzioO
— OfMiceandMold (@miceandmold) November 12, 2026
An Ongoing Condo Dispute May Have Played A Role
Investigators believe the violence may have been connected to a lengthy dispute between Lambert and the building’s management over alleged mold, moisture, and water damage inside his condo. Court records show Lambert had filed a lawsuit claiming he had been unable to properly enjoy his penthouse since 2024 because of the conditions, which he alleged began after exterior work was performed on the building.
His attorney, Joel Braithwaite, told reporters that Lambert had spent more than $300,000 pursuing the lawsuit. Braithwaite also described the condo’s condition as resembling a “war zone,” while expressing that he was deeply shaken and saddened by the violence.
Police Respond To Scene, Neighborhood Goes Into Lockdown
The shootings prompted a massive police response, with SWAT teams and officers surrounding the building. Additionally, residents and businesses were urged to stay away. Nearby schools were also placed on lockdown as law enforcement worked to secure the area.
Authorities said Lambert was armed with three guns during the incident. While inside his condo, he also allegedly cut a natural gas line connected to his fireplace. Moreover, Lambert also started a fire, triggering the building’s sprinkler system, which contained the flames.
Lambert Dies After Standoff With Police
After barricading himself inside the penthouse, Lambert spoke with police negotiators by phone before fatally shooting himself, according to interim Metropolitan Police Department Chief Jeffery Carroll. Mayor Muriel Bowser also addressed the tragedy, saying she was “devastated” by the loss of life in what she described as a “senseless act of gun violence.” The investigation remains centered on the circumstances leading up to the deadly shooting, including Lambert’s ongoing legal battle.


