Dallas — A dramatic confrontation late Wednesday ended with the death of a 39‑year‑old man who had been part of U.S. Representative Jasmine Crockett’s private security detail, law enforcement sources confirmed. Investigators identified him as Diamon‑Mazairre Robinson, though he had been widely known publicly under the name “Mike King.”
Robinson came into the spotlight after Dallas police fugitive units tracked him to a parking garage at Children’s Medical Center in downtown Dallas. Officers were executing an active warrant for his arrest tied to allegations he had been impersonating a law enforcement officer while running a private security business. When police ordered him out of a vehicle where he had barricaded himself, the situation turned deadly. Robinson emerged and pointed a firearm toward officers, prompting them to open fire and fatally strike him during the standoff.
Authorities say Robinson’s long‑term involvement in security work went well beyond typical assignments. Under the alias Mike King, he operated Off Duty Police Services, a company that connected off‑duty law enforcement officers with private security work in North Texas. Through that business, he had placed teams of officers at hotels, events, and other venues, and images obtained by news outlets show him standing near Crockett at public appearances and during her recent U.S. Senate campaign.
Robinson’s background, according to law enforcement sources, included multiple arrests for theft in the Dallas area between 2009 and 2012. Despite those convictions, he appears to have been able to reinvent himself under a new identity, build a business, and secure work with high‑profile clients. Sources say he even claimed to colleagues that he was a detective with the U.S. Capitol Police, a claim that drew the attention of federal investigators and led to the warrant for his arrest.
In addition to his security work, Robinson reportedly drove a vehicle modified to resemble an undercover police car, complete with stolen license plates. That further blurred lines for some who worked with him and raised questions about how he managed to maintain access to law enforcement officers and private security roles without detection of his true identity.
The circumstances of Robinson’s hiring and vetting by Crockett’s team have come under scrutiny. Records reportedly show payments to “Mike King” for security services as recently as last year, though officials have yet to explain how background checks were conducted or what oversight was in place. Crockett’s office has not publicly commented on the matter, and the Dallas Police Department has released limited information as the investigation continues.
Investigators are now reviewing how Robinson was able to embed himself so deeply in security operations, and whether any procedural failures allowed a fugitive to operate in positions of trust around public officials and private clients. The case has raised broader concerns about vetting practices and the risks of misrepresentation in security work.
