A man who served as a longtime security guard for Dallas Democratic Congresswoman Jasmine Crockett was shot and killed by Dallas police Wednesday night after barricading himself inside a vehicle in a parking garage at Children's Medical Center Dallas and pointing a gun at officers.
At around 11 p.m. on Wednesday, March 11, the Dallas Police fugitive task force was conducting a surveillance operation when officers followed a suspect with an active warrant to the parking garage in the 1900 block of Medical District Drive.
When officers attempted to make contact, the suspect barricaded himself inside his vehicle. SWAT was called to the scene.
Dallas Police Chief Daniel Comeaux described the sequence at a press conference Thursday morning: "They came across a target that ended up being a barricaded suspect. At that time, they tried to use tear gas to bring the suspect out. He came out of the vehicle, he had a gun, he pointed a gun towards officers. Officers shot and fired. He was pronounced dead at the scene." Comeaux confirmed the suspect displayed his weapon but did not fire it, and that a Dallas SWAT doctor attempted to render aid before the man was pronounced dead. No officers were injured.
The hospital briefly went on lockdown during the standoff. No hospital staff or bystanders were hurt.
Law enforcement sources identified the man as 39-year-old Diamon-Mazairre Robinson, who had been publicly using the alias "Mike King" and operating under multiple aliases while running Off Duty Police Services, a business that placed North Texas officers in off-duty security work.
Sources said Robinson was the subject of a federal investigation for impersonating a law enforcement officer, and that he had told officers he worked with that he was a detective with U.S. Capitol Police.