Dallas, Texas – What began as a targeted investigation into a man posing as law enforcement ultimately ended in a tense and fatal confrontation inside a Dallas parking structure, and now, days later, new details are adding weight to an already complex case.
Authorities continue to examine the officer-involved shooting that unfolded on the night of March 11, 2026, in the 1900 block of Medical District Drive. In a recent update, investigators revealed the scope of weapons and equipment tied to 39-year-old Diamon-Maziarre Robinson, also known as “Mike King,” painting a clearer picture of the threat officers believed they were facing.
Detectives have since recovered an extensive cache: one AR-15-style rifle, two revolvers, and eight pistols — including the handgun Robinson held during the encounter. Alongside the firearms, officers collected multiple pieces of body armor and patches labeled “POLICE,” “OFFICER,” and “SPECIAL AGENT,” reinforcing earlier findings that Robinson had been impersonating a federal agent.
The investigation that led officers to that parking structure had been building for weeks. It began on February 17, when Irving police issued a bulletin about a Black GMC Yukon bearing a stolen U.S. government license plate. As Dallas police units dug deeper, Robinson emerged as the suspect. Detectives determined he had been operating under false identities, creating fake businesses, and even hiring legitimate officers for off-duty work — all while presenting himself as a federal agent.
Authorities also linked him to multiple vehicles, including two reported stolen — the Yukon and a white Ford F-250 — as well as a silver Dodge Charger, all displaying fraudulent government plates. At the time he was located, Robinson was also wanted on several felony warrants and a parole violation.
On the evening of March 11, members of the Dallas Police Fugitive Unit tracked him to a white Mercedes in a parking garage. What followed was not immediate force, but a prolonged effort to avoid it. For more than an hour, officers attempted to negotiate, offering Robinson the chance to speak with family members in hopes of resolving the situation peacefully.
When those efforts failed, SWAT officers stepped in and continued negotiations. Commands were repeated, urging him to exit the vehicle. Shortly after 11 p.m., Robinson began to comply — but in a moment that quickly shifted the situation, officers say he produced a handgun and pointed it toward them.
SWAT responded by deploying a chemical agent and a flashbang device before three officers discharged their rifles. Robinson was struck and fell. Officers moved in, secured the weapon, and a SWAT medic immediately began life-saving efforts. Despite those attempts, Robinson was pronounced dead at 11:09 p.m.
No officers were injured in the incident, which marks the sixth officer-involved shooting connected to Dallas police in 2026.
The handgun recovered at the scene was confirmed to be stolen, and additional weapons were later found in vehicles and locations associated with Robinson. The Dallas County District Attorney’s Office is conducting an independent review, while the Office of Community Police Oversight has also been notified.
As is standard protocol, the officers involved have been placed on administrative leave. Investigators say the case remains active, with further details expected as the review continues.
