From ABC News · ABC News · · 2m
DC doctor's building feud ended in gym shooting
A 55-year-old medical doctor with a long-standing dispute over mold and water damage opened fire at his gym, killing his building manager and injuring four others before taking his own life.
In brief
A 55-year-old medical doctor with a long-standing dispute over mold and water damage opened fire at his gym, killing his building manager and injuring four others before taking his own life. Matt Wade Lambert, a fifty-five-year-old doctor, killed building manager James Stuart and injured four others at a Washington DC…
Doctor's long feud with building
Matt Wade Lambert, fifty-five, a medical doctor, harbored a long-standing grievance with his building's condominium association and management over water damage and mold, court documents show.
Lambert aired grievances on social media
Lambert operated an X account since September twenty twenty-five focused on his alleged housing issues, posting photos and videos claiming to show water damage and mold in his unit.
Post referenced building manager

On May nineteenth, Lambert wrote, "Saw my building manager at the gym today and he stated no knowledge of the audit." Police later identified the building manager as James Stuart.
“Saw my building manager at the gym today and he stated no knowledge of the audit.”
Lambert took legal action
A complaint filed by Lambert in March twenty twenty-five in Superior Court of the District of Columbia alleged mold and moisture and accused the condominium association of negligence.
Building management defended itself
EJF Real Estate Services, the building's management company, offered affirmative defenses including that Lambert failed to state a claim and the defendants did not owe him a duty of care.
Lambert opened fire at gym
On November twelfth, twenty twenty-six, Lambert opened fire inside a Washington DC gym, killing one person and injuring several others, according to police.
Victim was his building manager
The person killed was James Stuart, the building manager. EJF Real Estate Services remembered Stuart as a "respected and beloved member of our team."
“respected and beloved member of our team”
Police cite building dispute as motive
Interim Chief of Police Jeffery W. Carroll said authorities were aware of an ongoing dispute between Lambert and the building's condominium association regarding maintenance issues and mold.
Lambert died by self-inflicted gunshot
After fleeing to his apartment and firing at more people from his balcony, Lambert barricaded himself inside and died following a self-inflicted gunshot wound.
What matters most
Matt Wade Lambert, a fifty-five-year-old doctor, killed building manager James Stuart and injured four others at a Washington DC gym on November twelfth, twenty twenty-six, after years of disputes with his building's management over water damage and mold.



