'No Kings' protest shooting Salt Lake City: Arturo Gamboa in custody after protester Arthur Folasa Ah Loo killed, officials say

SALT LAKE CITY — At Salt Lake City’s “No Kings” protest, a demonstrator was shot and killed when a member of the event’s peacekeeping team allegedly fired at a man perceived to be pointing a rifle at protesters, according to authorities on Sunday.

Salt Lake City Police Chief Brian Redd announced at a Sunday news conference that police arrested Arturo Gamboa, 24, on a murder charge for allegedly wielding the rifle. The bystander, identified as Arthur Folasa Ah Loo, 39, succumbed to his injuries at the hospital.

Though detectives are still unsure of Gamboa’s motives for brandishing the rifle or fleeing from the peacekeepers, they assert that his actions led to the dangerous situation resulting in Ah Loo’s death. The Associated Press could not immediately locate an attorney for Gamboa or his family’s contact details in public records.

Redd said a man dressed in a brightly colored vest fired three shots from a handgun at Gamboa, inflicting a relatively minor injury but fatally shooting Ah Loo.

The gunshots sent hundreds of protestors running, some hiding behind barriers and fleeing into parking garages and nearby businesses, police said in a statement. “That’s a gun. Come on, come on, get out,” someone can be heard saying in a video posted to social media that appears to show the events.

“No Kings” protests swept across the country Saturday, and organizers said millions rallied against what they described as President Donald Trump’s authoritarian excesses. Confrontations were largely isolated.

The Utah chapter of the 50501 Movement, which helped organize the protests, said in a statement on Instagram that they condemned the violence.

The Utah chapter did not immediately respond to AP questions about the peacekeeping team. It was unclear who hired them, whether they were volunteers or what their training was prior to the event. Redd said that the peacekeepers’ actions are also part of the investigation.

The shooter and another person in a vest allegedly saw Gamboa separate from the crowd of marchers in downtown Salt Lake City, move behind a wall and withdraw a rifle around 8 p.m., Redd said.

When the two men in vests confronted Gamboa with their handguns drawn, witnesses said Gamboa raised his rifle into a firing position and ran toward the crowd, said Redd.

That’s when one of the men dressed in the bright vests shot three rounds, hitting Gamboa and Ah Loo, said Redd. Gamboa, who police said didn’t have a criminal history, was wounded and treated before being booked into jail.

Police said they recovered an AR-15 style rifle, a gas mask and a backpack at the scene.

Copyright © 2025 by The Associated Press. All Rights Reserved.

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