DC gunman was doing ‘very well’ before shooting — and planned to start a new job next week, attorney says

Dr Matt Lambert, 55, shot and killed his condominium building manager, James Stuart, and wounded four other people in Washington, DC, before dying by suicide after a standoff with police. The account from Lambert’s attorney that he had recently seemed well and was about to begin a new job has left the attorney unable to explain what led to the attack.

The shooting took place on Thursday in the gym of a Logan Circle condominium, where Lambert was involved in a legal dispute over alleged mould in his penthouse. He then remained inside his seventh-floor home for nearly an hour; one of the wounded people was in critical condition. Stuart, 46, was a key witness in Lambert’s dispute with the building and its housing board. Lambert had recently presented on artificial intelligence in Orlando, and the day of the shooting was the anniversary of his mother’s death, his attorney said.