Kansas City Chiefs rally shooter arrested on federal weapons charges, unsealed complaint shows

Ben Wheeler, The Kansas City Star on Sep 8, 2026

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KANSAS CITY, Mo. — A man who pleaded guilty in connection with the 2024 Chiefs Super Bowl rally shooting was arrested on federal charges after a traffic stop led to the discovery of two handguns equipped with a machine gun conversion device, according to an unsealed federal complaint.

Dominic Miller, one of the two men who received plea deals for their involvement in the rally shooting, was arrested Tuesday after a federal complaint filed Sept. 5, according to federal court records. Miller is charged with being a felon in possession of a firearm and a count of possession of a machine gun.

Miller previously had been charged with second-degree felony murder, unlawful use of a weapon, and two counts of armed criminal action before receiving a plea deal. He pleaded guilty in March to one count of unlawful use of a weapon in Jackson County Circuit Court for his role in the rally shooting that killed Lisa Lopez-Galvan and injured dozens more, including several children.

Federal court records show Miller was arrested Tuesday and the federal complaint was unsealed.

The federal complaint says Miller was stopped by Kansas City police officers on July 24, about four months after he was released from custody in the Chiefs rally shooting case.

Officers saw a tan Chevrolet Malibu traveling north on Prospect Avenue towards Martin Luther King Boulevard in Kansas City when a computer check of the license plate showed it was registered to a 2003 Ford truck, according to the complaint.

Police conducted a traffic stop and identified Miller as the driver. He said he had just purchased the vehicle and had not registered it.

“A computer check of Miller revealed a full extradition felony warrant out of Sedgwick County, Kansas for Flee/Attempt to Elude,” the complaint said. “A computer check of the front passenger revealed no warrants, and a computer check of the rear passenger revealed municipal warrants for his arrest.”

Miller and one of the passengers were arrested. During a search of the vehicle, officers found a black Glock 19 under the front passenger seat with a machine gun conversion device, commonly known as a Glock switch. A second handgun, a Glock 17, was also found under the front passenger seat with a machine gun conversion device.

When detectives attempted to interview Miller that day, he said he had taken the vehicle to be repaired before his arrest and then picked up the two passengers. When asked about the firearms in the vehicle, Miller denied knowing about the weapons and requested a lawyer, according to the complaint.

The complaint claims that a DNA swab from the gun’s trigger contained a mixture of three people, and the results strongly suggest that Miller was one of them.

No court dates have been set as of midday Tuesday, but federal prosecutors filed a motion for detention on Saturday asking for Miller to be held in federal custody. The detention motion said that there are no conditions the court could place on Miller that would assure the safety of the community or ensure that he would appear for court.

Miller’s attorney is also yet to be listed in the court records.

If convicted, Miller could face up to 25 years in prison, a $500,000 fine and multiple years of supervised release.

Miller has also been charged for the improper display or possession of the plates of another vehicle in Kansas City’s Municipal Court.

Rally shooting

Police alleged that Miller was among the two groups that fired shots at each other in the crowd during the rally near Union Station in February 2024. The shooting killed one, Lopez-Galvan and injured roughly two dozen other people, including several children, who were struck by gunfire. Dozens more were injured in the ensuing chaos after shots erupted in the crowd.

Miller received a plea deal in the state case after prosecutors said Missouri’s broad self-defense laws created a burden to securing a murder conviction.

As part of that plea deal, Miller received a two-year sentence with credit for time served and spent roughly four hours in state custody. He had 753 days of local credit, according to a spokesperson for Missouri’s Department of Corrections.

Jackson County Prosecutor Melesa Johnson announced in August that a grand jury returned a superseding indictment against the last charged shooter, Lyndell Mays.

Mays originally was charged with second-degree murder, unlawful use of a weapon and two counts of armed criminal action. Mays now faces seven counts of second-degree assault and seven counts of first-degree endangering the welfare of a child, in addition to the charges he faced in the original indictment.