Logan Circle shooter identified: What to know

A shooting in Washington, D.C.’s Logan Circle neighborhood Thursday morning left one person dead and four others wounded after a gunman shot someone inside a fitness center before barricading himself in a nearby apartment, where he later died after shooting himself.The suspected shooter was identified as Matt Lambert, according to NBC News4. D.C. police have not publicly identified him or any of the victims who were shot.The shooting appears to have stemmed from a dispute between Lambert and the homeowners association of the condominium building where he lived, according to D.C. officials. Ward 2 Councilwoman Brooke Pinto, whose district includes Logan Circle, told NBC News4 that Lambert allegedly entered Vida Fitness on 15th Street NW to target someone with whom he had been involved in litigation over a condominium issue. “We believe the suspect walked into Vida to target somebody that he had been in active litigation with, over a condo issue,” Pinto said. “It’s just so sad and so senseless to kill someone over a dispute that should be worked out reasonably.”How the shooting unfolded Metropolitan Police Department officers received reports of gunfire at Vida Fitness, near the intersection of 15th and P streets NW, shortly after 8 a.m. Thursday.The first victim was shot inside the gym. Police said the victim, who was a member of the fitness center, died at the scene. The gunman then appears to have continued firing outside the building, striking four additional people, including construction workers near a site across the street.Police said their Emergency Response Team arrived within 30 seconds of the initial call, with officers making contact with the first victim approximately three minutes after dispatch. One of the four surviving victims was in critical condition, according to interim MPD Chief Jeffery Carroll.After the shooting, Lambert went to a condominium, suspected to be his home, on the seventh floor of the nearby Metropole building, where he barricaded himself inside an apartment.Carroll said the suspect fired at officers through the apartment door twice as they attempted to respond. Police began negotiating with him over the phone for roughly an hour, but subsequently heard a gunshot from inside the unit. Officers forced their way into the apartment and found Lambert suffering from a gunshot wound. He was pronounced dead.According to Carroll, investigators believe the shooting was connected to a conflict between the suspect and the building’s homeowners association. Investigators are still working to determine whether the other four people were shot at random.What was the dispute? Lambert, a medical doctor, filed a lawsuit against the Metropole condominium association in D.C. Superior Court in March 2025, alleging that work on the building’s facade caused water to leak into his penthouse apartment and resulted in more than $100,000 in damages.According to D.C. police, Lambert had three guns in his condo unit, including one shotgun and a rifle. Police also found a handgun that they suspect he used in the shooting. It is unclear whether Lambert legally owned these guns.According to the complaint, Lambert paid to have portions of his unit deconstructed and discovered what he described as black mold inside the walls. He alleged that the damage had made the apartment uninhabitable and that he had not lived there since November 2024.The condominium association also alleged in court filings that laundry dryers at Vida Fitness, which operates below the Metropole building, contributed to excess moisture buildup in Lambert’s apartment.An X account apparently connected to Lambert had repeatedly complained about the building’s mold problems and the lack of repairs to his unit. The account, which used the handle “OfMiceandMold,” posted what it described as a manifesto at 8:06 a.m. Thursday, shortly before the shooting.“My manifesto is an engineering report,” the account wrote, alongside screenshots of an engineering document detailing alleged water damage, mold, and unfinished repairs at the building.The Washington Examiner reached out to X and MPD for clarification on whether the account was linked to Lambert.Police have not established a definitive motive, and the investigation into the shooting remains ongoing.One killed and four injured in DC shooting before suspect barricades and fatally shoots himself: PoliceSchools and neighborhood response The shooting prompted security precautions at several nearby schools Thursday morning as authorities worked to secure the area.D.C. Public Schools said it was communicating with school leaders and parents to protect students, teachers, and staff. Several schools near the shooting scene were placed on lockdown.