A Newsweek report says one man, James Stuart, was killed and four others wounded when emergency doctor Matt Lambert opened fire at VIDA Fitness in Washington, D.C.'s Logan Circle on November 12, 2026, before barricading in his apartment and dying of a self-inflicted gunshot during police negotiations. Police tie the attack to Lambert's litigation with his condo association over mold and leaks but cite no definitive motive, and witnesses describe the gunfire inside the crowded gym.