Rudy Arguello-Rios was 18 when he was fatally shot in the parking lot of Mariscos El Rey 2 in Aurora on December 22, 2020. The confrontation began inside after a group of patrons complained their food was cold and refused to pay; when the waitress threatened to call police they left the restaurant and an altercation continued in the parking lot. Witnesses described Arguello-Rios as a peacekeeper who went outside to defend the waitress and was urging the parties to stop being rude.

During the brawl a woman identified as 28-year-old Jacqueline De Paz reportedly produced a handgun. As Arguello-Rios bent to help an injured person and tried to wrestle the gun away, De Paz allegedly fired one shot that struck his chest, hitting an artery and a lung. He was taken to a hospital and died less than an hour later. De Paz was arrested two days later during a traffic stop in north Aurora and charged with second-degree murder and felony menacing; she was booked into the Arapahoe County jail on $1 million bond.

If anyone witnessed the dispute in the restaurant or parking lot or has information about what happened that night, please share what is known.