A man shot and killed by Dallas police during a SWAT standoff this week had previously served as a security guard for Rep. Jasmine Crockett, according to multiple law enforcement sources. Dallas police tracked the suspect, who went by different aliases — but was going by the name Mike King — to a parking garage at Children’s Medical Center Dallas late Wednesday night, Dallas Police Chief Daniel Comeaux said during a press conference Thursday morning. OIS at 1900 Medical District Drive https://t.co/cWOeKf0akr — Dallas Police Dept (@DallasPD) March 12, 2026 Officers located the man barricaded inside a vehicle in the garage. After deploying tear gas to force him out, police say the suspect emerged and pointed a gun at SWAT officers. Officers opened fire, killing the suspect at the scene. Multiple law enforcement sources have confirmed to CBS News that the suspect had been operating under several aliases and was known publicly as Mike King. He allegedly ran a company called “Off Duty Police Services,” which connected North Texas police officers with off-duty security jobs. The Daily Wire reached out to a company of that name in the Dallas area for comment to confirm the claim, but did not receive a response. Sources say the man was wanted for allegedly impersonating a law enforcement officer and had claimed to be one while operating the business. Images obtained by reporters show King standing close to Crockett at public events and on the campaign trail during her recent run for the Democratic nomination for the U.S. Senate seat. Law enforcement sources also said King oversaw teams of security officers working at several downtown Dallas hotels and events, and that he frequently drove a replica undercover police vehicle. Authorities say the vehicle allegedly used stolen license plates taken from cars outside a military recruiting office. Federal Election Commission receipts reviewed by The Daily Wire show that a person identified as Mike King received payments from Crockett for “security services” as recently as last year. Crockett’s office has declined to comment on the situation. The Dallas Police Department has also said it will provide additional information as the investigation continues. The Texas Democrat, first elected to Congress in 2023, has been a prominent left-wing voice in the House and a frequent critic of Donald Trump and Republican lawmakers. The incident raises questions about how the suspect, who authorities say had a criminal background and was using multiple aliases, was able to operate a business placing officers in off-duty security work and secure a role providing protection for a sitting member of Congress.