Home / Crime and Justice / Penthouse Mold Dispute Ignites Deadly DC Condo Shooting
Penthouse Mold Dispute Ignites Deadly DC Condo Shooting
14 Nov
Summary
- Mold and water damage plagued a DC penthouse for over a year.
- The resident sued his HOA, alleging unaddressed building issues.
- A violent shooting erupted, allegedly motivated by the dispute.
A protracted legal battle over alleged mold and water damage in a Washington, DC penthouse is believed to have escalated into a fatal shooting. Matt Lambert claimed his million-dollar condo became uninhabitable due to issues that began in 2023, with mold growth and leaking pipes persisting for over a year.
Lambert initiated a lawsuit in March 2025 against his homeowners' association, seeking resolution for the damage he claimed was ignored by management, including building manager James Stuart. His attorney stated Lambert had spent over $300,000 on legal fees and home maintenance.
Evidence suggests Lambert meticulously planned the November 12th attack. He allegedly waited for Stuart at a gym, shot him, then returned to his unit, where he barricaded himself, fired from a balcony, and cut a gas line, starting a fire. Police discovered hundreds of rounds of ammunition, a broken gas line, and fire accelerants in his apartment.
Social media posts from Lambert revealed increasing distress over his condo's condition and management's response. In one post, he referred to his "manifesto" as an engineering report, attaching screenshots of building issues. The legal dispute was ongoing when the shooting occurred.
