DC mass shooter who killed one and injured for then shot himself dead named as Dr Matt Lambert

Developing story first seen 58 minutes ago

Daily Mail · 58 minutes ago

New details identify the suspect as Dr Matt Lambert, a 55-year-old doctor and medical technology executive, who was reported to have lost a lawsuit over water damage at his home before the shooting. Police said they were investigating a conflict between Lambert and the building’s homeowners’ association as possible context for the attack.

Lambert killed a man and injured four others in or near a Washington, DC, gym, then barricaded himself in his apartment. After negotiators spoke with him for about an hour, police heard a gunshot and found him dead from a self-inflicted wound. Lambert had claimed that renovation work caused water damage and mould in his flat, and posted that his “manifesto” was an engineering report.

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In short

Dr Matt Lambert was named as the gunman.
Police are examining his dispute with the building association.
He killed himself after an hour-long standoff.

How this story developed

30 minutes ago Dr Matt Lambert, a 55-year-old doctor and medical technology executive, killed a man and injured four people in a shooting at a Washington, DC, gym before dying from a self-inflicted gunshot wound.
33 minutes ago New details identify the suspect as Dr Matt Lambert, a 55-year-old doctor and medical technology executive, who was reported to have lost a lawsuit over water damage at his home before the shooting.

Explained simply

Lambert was a doctor and medical technology executive who lived in a Washington, DC, condominium building. Its homeowners’ association, which manages shared areas and handles residents’ concerns, was involved in a dispute with him over water damage and mould he linked to renovation work.

Lambert had taken the association to court and posted about his complaints online. Police are examining the dispute as possible context for the shooting at a gym, where one person was killed and four were injured; officials have not established it as a motive.