Doctor, 55, Opens Fire at Luxury DC Condo Building, Leaving One Dead and Four Injured — What We Know

A quiet Thursday morning in one of Washington, DC's upscale neighborhoods turned deadly when a doctor opened fire inside a gym, killing one man and wounding four others. But as investigators began examining the circumstances surrounding the attack, disturbing social media posts and unexpected revelations about the suspected gunman's final days raised even more questions.

A Morning of Terror in Washington, DC

The violence erupted on Thursday, November 12, 2026, in Washington's Logan Circle neighborhood, an area known for its historic buildings, restaurants, and luxury residential developments. What began as a seemingly ordinary weekday morning quickly became an emergency as reports of gunfire sent residents and gym members scrambling for safety.

At approximately 7:59 a.m., officers from the Metropolitan Police Department responded to reports of an active shooter in the 1500 block of 15th Street Northwest. According to the department's official statement, five people had been shot, including one man who died at the scene.

The shooting began at VIDA Fitness, a gym located on the ground floor of the Metropole condominium building. Police said the gunman entered the fitness facility and fatally shot a man who worked as the building's manager.

The victim was identified as 46-year-old James Stuart, a Washington resident whose work connected him directly to the condominium complex. The attack then extended beyond the gym, putting people outside the building in danger.

According to NBC Washington, the gunman subsequently returned to his apartment on the building's seventh floor and fired toward people below from his balcony. Four other victims, two women and two men, were wounded during the attack.

Police later confirmed that all four surviving victims had been conscious and breathing when they were transported to hospitals. Initial reports indicated that one person was critically injured, while the other three suffered injuries that were not considered life-threatening.

A Deadly Standoff Unfolds

As officers rushed to secure the area, the suspect retreated into his apartment and barricaded himself inside. Police negotiators attempted to communicate with him while officers worked to prevent further violence.

The situation became more dangerous when authorities said the gunman damaged a gas line and started a fire inside the residence. The building's sprinkler system helped contain the flames, while nearby residents were forced to deal with the frightening uncertainty of what might happen next.

After officers heard gunfire from inside the apartment, they entered and discovered the suspect suffering from an apparent self-inflicted gunshot wound. Emergency responders determined that he had died at the scene.

Authorities identified the man as Matt Wade Lambert, 55, a physician who owned a residence in the building. Investigators recovered three firearms from his apartment — a shotgun, a rifle, and a handgun — and said all three had been used during the incident.

The police department also confirmed that none of the weapons were registered to Lambert in Washington, DC. Investigators continued examining the attack, including whether the gunman had deliberately targeted anyone beyond the building manager.

The Doctor Behind the Shooting

Lambert was not only a resident of the luxury apartment building. He was also a board-certified emergency physician with a background in healthcare consulting and technology.

According to CBS News, he founded and led MLEM, a consultancy focused on healthcare and technology. His professional history included medical training at Marshall University in West Virginia and a residency at West Virginia University.

He had purchased his penthouse condominium in September 2016 for approximately $1.095 million, according to property records cited by CBS News. For years, the residence was his home, but a major renovation project would eventually become the center of a bitter legal dispute.

The connection between that disagreement and the shooting quickly became a major focus for investigators.

A Luxury Apartment at the Center of a Bitter Dispute

Court documents examined by USA TODAY revealed that Lambert had been involved in litigation with the Metropole Condominium Association since 2025. The dispute centered on alleged water damage, moisture buildup, and black mold in his apartment.

According to a March 21, 2025 court filing, the condominium association began a façade rehabilitation project in March 2023 to address the building's exterior structure. Between May 2023 and April 2024, Lambert paid a special assessment totaling $15,356.95 toward the work.

During the construction, Lambert claimed that his "unit experienced suspected water intrusion, mold, significant moisture accumulation, and/or related damage," according to the filing. His allegations described problems that he believed had developed as a result of the building work.

Lambert stated that he notified the condominium association about water entering his property as early as March 2024. In August of that year, workers reportedly opened part of the drywall to investigate whether water had been accumulating behind the wall.

By September 2024, the situation had allegedly worsened. Court records described excess moisture collecting behind the drywall, malfunctioning electrical curtains, and mold that Lambert said was both visible and detectable by smell.

The condominium association and property management company disputed responsibility for the damage. According to CBS News, they argued that any problems were caused by third parties beyond their control and that Lambert had failed to sufficiently limit his losses.

The disagreement extended beyond Lambert and the homeowners association. Court filings also identified the building manager, James Stuart, as a witness, while VIDA Fitness was named among the defendants in the litigation.

These connections became particularly significant after the November 12 attack. Investigators believed that the dispute might help explain why the shooting began inside the gym where Stuart was killed, although the precise motive had not been conclusively established.

Months of Online Complaints Raise New Questions

The legal filings were not the only records revealing Lambert's frustration. Months before the shooting, an X account associated with him had been documenting complaints about his condominium's condition and the people responsible for managing the building.

As CBS News reported, the account, operating under the name @OfMiceandMold, contained dozens of posts criticizing the building's contractors, management, and the handling of his complaints.

One message posted in April 2026 would later attract particular attention because it referred to the location where Stuart was ultimately killed.

"If you're looking for the building manager, I would check the gym," Lambert wrote.

At the time, the statement appeared within a broader series of comments about the building's management. After the shooting, however, the reference to the gym became an important detail for those examining Lambert's earlier public statements.

Another post, dated October 1, included a reference that drew attention for a different reason.

"After months of 'Luigi' tactics (delay, deny, defend) by the HOA, we were finally able to submit an independent engineering report into the record," Lambert wrote.

The language appeared to invoke Luigi Mangione, who was accused of killing UnitedHealthcare CEO Brian Thompson in December 2024. The phrase "delay, deny, defend" had become associated with the earlier killing after investigators recovered ammunition bearing those words.

Shortly before the shooting, Lambert reportedly shared what he described as an engineering report documenting the building's problems. In another message, he characterized the report as his "manifesto," a term that gained attention as investigators examined his final online activity.

The condominium conflict had clearly occupied a significant place in Lambert's public communications. Yet his social media posts presented only one side of a far more complicated picture, especially when compared with what people who had recently interacted with him would later say.

His Final Conversation With His Lawyer

Joel Braithwaite, the attorney representing Lambert in the condominium litigation, spoke publicly after the shooting and described his disbelief over what had happened. According to USA TODAY, Braithwaite had spoken with Lambert by phone on Tuesday, November 10, just two days before the attack.

During that conversation, the attorney said, Lambert gave no indication that he was approaching a breaking point. Instead, he appeared to be focused on professional developments and had recently participated in a healthcare-related conference in Orlando.

Lambert was also scheduled to begin a new job on Monday, November 16. According to The Washington Post, Braithwaite said the role would involve artificial intelligence, developing new systems, and exploring the future of healthcare in the United States.

Braithwaite said Lambert had recently completed a presentation that he felt had gone well. From the lawyer's perspective, his client appeared to be moving forward with plans that he had been excited about. The attorney described himself as "deeply shocked" by the shooting and emphasized that he had not anticipated such an outcome. He also cautioned against treating the condominium litigation as a sufficient explanation for what happened.

Braithwaite argued that civil disputes are supposed to be resolved through the courts, not through violence. His remarks underscored the difficulty of understanding the gap between the conversations he had with Lambert and the deadly events that followed.

But during the same discussion, the attorney revealed one more personal detail about the date of the attack.

A Painful Anniversary Raises Another Question

Braithwaite said he did not know what might have triggered Lambert before the November 12 shooting. However, he noted that the shooting occurred on the anniversary of the day Lambert buried his mother.

The timing introduced another possible emotional context to a case already complicated by years of litigation and months of public complaints. Nevertheless, the attorney made clear that he could not determine whether the anniversary had played any role in Lambert's actions.

As The Washington Post reported, Braithwaite said he did not know how the various circumstances came together. The anniversary was a detail he had learned, not an explanation he could substantiate.

The distinction is important because investigators have not established that grief over his mother's death caused or contributed to the violence. Nor does the timing explain why Stuart and four other people became victims.

Braithwaite's account instead highlighted how much remains uncertain about Lambert's state of mind in the final days before the attack.

For someone who had recently appeared upbeat at a conference, discussed professional opportunities, and prepared for a new job, the sudden violence remained deeply difficult for those around him to reconcile.

A Community Left to Confront the Aftermath

As attention turned toward Lambert's legal disputes and personal circumstances, the tragedy left another family facing the loss of a loved one.

James Stuart, the 46-year-old building manager killed at VIDA Fitness, had worked for EJF Real Estate Services for approximately 13 years. In a statement reported by The Washington Post, the company described him as a respected and beloved member of its team.

EJF President Scott Burka expressed grief over Stuart's death, emphasizing that he had been far more than a colleague. Stuart's loss was deeply felt by those who had worked alongside him and the community he served.

The four other people injured in the attack also faced the physical and emotional consequences of the violence. Their experiences remain central to the tragedy, even as public attention has focused heavily on the suspected gunman's background.

Residents of the Metropole building were left dealing with the aftermath of the police response, including disruption to their homes and uncertainty about what would happen next.

Police continued investigating the circumstances of the shooting, including Lambert's possible motive and whether the surviving victims had been deliberately targeted. The department also asked anyone with relevant information to contact investigators.

The case has left investigators examining a complicated combination of legal grievances, troubling online statements, and personal circumstances that have not yet been fully explained.

But amid those unanswered questions, one fact remains clear: James Stuart lost his life, four others were wounded, and a Washington neighborhood was shaken by an act of violence whose full circumstances are still being investigated.