Earlier than the suspect, who police recognized as Matt Wade Lambert, opened fire at a Washington, D.C., health club, killing his constructing supervisor, the 55-year-old medical physician harbored a long-standing grievance with the constructing’s condominium affiliation and administration and had taken authorized motion for water injury and mildew, based on court docket paperwork.
Lambert appeared to have operated an account on X since September 2025 centered on his alleged housing points.
In at the very least one publish, he seems to reference the person police say he fatally shot– constructing supervisor James Stuart.
The posts embody quite a few pictures and movies he claimed present water injury and mildew in his unit, and what he alleged are his makes an attempt to hunt redress along with his constructing’s administration.
On Could 19, he wrote, “Noticed my constructing supervisor on the health club at this time and he said no information of the audit.”
Legislation enforcement officers work on the website of what DC police says is a capturing, in Washington, November 12, 2026.
Aaron Schwartz/Reuters
On Oct. 1, he appeared to reference Luigi Mangione , writing about his ongoing dispute with the constructing, “After months of ‘Luigi’ ways (delay, deny, defend) by the HOA, we have been lastly capable of submit an impartial engineering report into the file. The report addresses 704, the facade rehabilitation extra broadly, and lists different models affected. When the time is true, I’ll share the report on X, with different Metropole house owners, and with Logan Circle realtors.”
A publish referencing that report appeared on the account shortly after 8 a.m. on the morning of the capturing.
Lambert’s complaints appeared to have elevated past social media reviews.
A grievance filed by Lambert in opposition to his condominium affiliation in March 2025 within the Superior Courtroom of the District of Columbia alleged mildew and moisture and accused the affiliation of negligence, amongst different counts.
The constructing’s administration, EJF Actual Property Companies inc., can be listed as a defendant in an amended grievance.
Within the defendant’s response to the amended grievance, the condominium affiliation and EJF Actual Property Companies supplied a number of affirmative defenses together with the plaintiff “fail[ed] to state a declare upon which aid may be granted” and the defendants “didn’t owe an obligation of care to the Plaintiff with respect to the problems alleged.
ABC Information has reached out to an lawyer who was representing Metropole Condominium Affiliation within the dispute.
In an announcement to ABC Information, EJF Actual Property Companies remembered James Stuart as “revered and beloved member of our crew.”
The corporate stated Stuart “misplaced his life in a mindless act of violence.”
The administration firm stated the investigation is ongoing, and they might not touch upon the main points of the investigation.
Lambert would deliver his grievances to the media, too.

Legislation enforcement work on the website of a capturing, in Washington, November 12, 2026.
Sam Sweeney/ABC Information
Michael Brice-Saddler, a reporter who beforehand interviewed Lambert concerning the dispute, stated in an interview with ABC News on Thursday that “[Lambert] felt like he’d been wronged, he felt like he should not need to pay for errors, he felt like have been the fault of the constructing, and he tried to show that in no matter means he might by court docket.”
Joel Braithwaite, an lawyer for Lambert, spoke with ABC Information Washington, D.C., affiliate WJLA on Thursday, saying he was “shocked” by the occasions that transpired.
Braithwaite stated Lambert had lately gained new employment, and days prior had offered at a convention on synthetic intelligence and healthcare.
“He’s not somebody that, to my thoughts, will possess any type of harmful intent or sick will in direction of anybody, and so I am very shocked and saddened that we’re right here at this time having this dialog,” Braithwaite stated.
In a press convention on Thursday, Interim Chief of Police for the Metropolitan Police Division Jeffery W. Carroll cited the constructing dispute as a doable motive for the capturing.
Authorities stated they have been conscious of an “ongoing dispute between the suspect on this case and the constructing condominium home-owner’s affiliation administration relating to upkeep points, mildew and the like.”
Negotiators who spoke with the suspect talked about that “a lot of the dialog was concerning the home-owner’s affiliation and challenges with that,” Carroll stated.
Lambert opened hearth inside a Washington, D.C., health club on Thursday, based on police.
He then fled to his residence, the place he fired at extra folks from his balcony earlier than turning a gun on himself, Carroll stated at a press convention.
Officers stated one of many injured was critically wounded andLambert died following a self-inflicted gunshot wound after barricading himself inside his residence.
