CRIME, POLICE + COURTS

‘No Kings’ protest investigation is now in the hands of the DA

Jul 16, 2025, 3:26 PM | Updated: 5:14 pm

People rush to give medical assistance to a man shot during a No Kings protest and march in Salt La...

People rush to give medical assistance to a man shot during a No Kings protest and march in Salt Lake City on Saturday, June 14, 2025. (Brice Tucker/Deseret News)

(Brice Tucker/Deseret News)

SALT LAKE CITY — The investigation into the deadly shooting at the June ‘No Kings’ protest is now in the hands of the Salt Lake County District Attorney’s Office.

On Wednesday, Brent Weisberg, the spokesman for the Salt Lake City Police Department, said that the department’s findings have been turned over to the DA’s office after a presentation on July 2.

“While there are certain instances where we may provide input, charging decisions are ultimately made by the prosecuting attorney,” Weisberg said. “In this particular case, the SLCPD did not offer a charging recommendation but instead presented our initial investigative findings to the Salt Lake County District Attorney’s Office for review and determination.”

In a statement, Salt Lake County District Attorney Sim Gill said his office received the police department’s findings, but that the “investigation is not complete.”

“As with many investigations referred to the Salt Lake County District Attorney’s Office, there is follow-up work to be done. This continues to be an open case without any formal conclusions at this stage of the proceedings,” Gill said.

After the July 2 presentation, Gill said prosecutors requested “follow-up work” from detectives after reviewing the evidence.

The Day of the shooting

The 50501 Movement organized several protests across the country, all on On June 14, to “take a stand against authoritarianism.”

The Salt Lake City protest began in Pioneer Park following an earlier demonstration at the University of Utah. This protest gathered approximately 10,000 people, according to SLCPD.

 

While the protest began peacefully, as demonstrators reached 100 S. 200 E., shots were fired by a so-called “peacekeeper,” according to police.

Initially, SLCPD said that two peacekeepers saw 24-year-old Arturo Roberto Gamboa pull out a rifle and begin to “manipulate” it near 151 S. State.

“Gamboa was then confronted by these two men. Witnesses say Gamboa raised the weapon in a firing position and began running toward the crowd,” Salt Lake City Police Chief Brian Redd said during a press conference on June 15.

One of the peacekeepers fired three rounds, with one bullet hitting Gamboa in the stomach, according to police.

Police said other demonstrators called officers near 100 S. 200 East, where they found Gamboa “hiding in a group of people” and took him into custody.

SLCPD said that officers “recovered an AR-15-style rifle, a gas mask, and a backpack ” from Gamboa. He was then transported by ambulance.

Arturo Gamboa is taken away in handcuffs on a gurney. The man yelled that he had been shot during the “No Kings” protest and march in Salt Lake City on Saturday, June 14, 2025. (Photo: Scott G. Winterton, Deseret News)

Arturo Gamboa is taken away in handcuffs on a gurney. The man yelled that he had been shot during the “No Kings” protest and march in Salt Lake City on Saturday, June 14, 2025. (Photo: Scott G. Winterton, Deseret News)

The gunfire injured another man, 39-year-old Arthur Folasa Ah Loo, and he was taken to the hospital in critical condition.

SLCPD said the two peacekeepers were taken into police custody. The two peacekeepers were wearing high-visibility vests and were armed.

 

Death and Arrest

The next day, SLCPD announced that Ah Loo died from his injuries while at the hospital, and Gamboa was booked into the Salt Lake County Jail on suspicion of murder.

“Arturo Gamboa was acting under circumstances evidencing a depraved indifference to human life, and knowingly engages in conduct that creates a grave risk of death to another individual and thereby causes the death of the other individual,” police wrote in Gamboa’s jail probable cause statement.

‘We lost a very important person’: Family, friends mourn protester killed in ‘No Kings’ protest shooting

 

During the June 15 press conference, the SLCPD stated that no action was being taken against the two peacekeepers.

Five days later, Gamboa was released from the Salt Lake County Jail after the DA’s office opted not to formally charge Gamboa for the murder of Ah Loo. However, the office said the case was under investigation and Gamboa could still face charges.

“It was determined that we will not be able to make an informed decision by Monday (June 23) at 5 p.m. as to the culpability, if any, as to Mr. Gamboa in relation to the fatal shooting of Arthur Folasa Ah Loo at the ‘No Kings’ Protest,” the DA’s office said on June 20.

‘Peacekeepers’

Days after Gamboa’s release, KSL obtained the permit for the No Kings protest, indicating that organizers would not be hiring private security or off-duty Salt Lake City police officers for the event.

However, because the peacekeepers were volunteers, it’s unclear if their presence went against the organizer’s answers in the online permit form.

Additionally, the organization listed on the application is Utah Protest and Rally LLC. KSL confirmed with the Utah Department of Commerce that the company is not a registered LLC in Utah.

 

As prosecutors consider potential criminal charges against the man whose alleged actions caused the shooting death of another man during Saturday's "No Kings" protest, the investigation into the so-called "peacekeepers," wone of whom fired the fatal shot also continues.

Police and medical personnel swarm a person after a reported shooting during the “No Kings” protest and march in Salt Lake City on Saturday, June 14, 2025. (Scott G, Winterton, Deseret News)

The 50501 Movement also announced that it was cutting ties with the Salt Lake City branch, saying the organization has a strict, no weapons policy.

“Due to SLC 50501’s disregard for our nonnegotiable values, we are no longer affiliated,” the organization said in its post.

During this time, SLCPD said it was still investigating the role of the two peacekeepers, such as whether the protest organizers appointed them, or they volunteered, or were hired or self-appointed.

As of Wednesday, neither the police nor the DA’s office has hinted at charging the peacekeepers for any crimes.

How Utah’s self-defense law could impact charging decisions in deadly ‘No Kings’ protest shooting

 


Editor’s Note: This story was updated to clarify that SLCPD did not advocate for charges to be filed or not to be filed in this case. 

Previous reporting:


Editor’s Note: This story was updated to clarify that SLCPD did not advocate for charges to be filed or not to be filed in this case. 

 

We want to hear from you.

Have a story idea or tip? Send it to the KSL NewsRadio team here.

Crime, Police + Courts

FILE: A sign is posted in front of the 23andMe headquarters on February 01, 2024 in Sunnyvale, Cali...

Logan Stefanich, KSL

Utah, 40 other states reach $18M settlement with 23andMe after data breach, bankruptcy

Utah and over 40 other states on Wednesday announced a $18 million settlement agreement with genetic information company 23andMe after the company filed for bankruptcy in March 2025.

3 days ago

Charges unsealed this week claim a doorbell camera captured what appears to be a targeted shooting ...

Tim Vandenack, KSL

Feds say 2nd suspect in killing of West Point man was also in the country illegally

The second suspect in the seemingly random killing in May of a West Point man was also an immigrant who entered the United States illegally and is facing deportation, according to federal officials.

4 days ago

A woman in Nephi was arrested after police said she made threatening calls to city workers while im...

Bryanna Willis

Nephi woman arrested after posing as a federal official and threatening city workers, police say

A woman in Nephi was arrested after police said she made threatening calls to city workers while impersonating a federal officer.

5 days ago

FBI data shows Utahns filed 9,903 cybercrime complaints last year, reporting more than $195 million...

Matt Gephardt, KSL

Scam victims may have a chance to recover stolen money — but they must act fast

FBI data shows Utahns filed 9,903 cybercrime complaints last year, reporting more than $195 million in scam losses.

5 days ago

Sohail is shown in a hospital after he sustained critical injuries in a stabbing in West Valley Cit...

Pat Reavy, KSL

Valley Fair Mall stabbing incident charged as hate crime

A Taylorsville man accused of stabbing another man multiple times at Valley Fair Mall, allegedly because of his faith, has been charged with two counts of attempted murder.

10 days ago

A vehicle believed to have been involved in a shooting in West Point on May 30. Davis County announ...

Cassidy Wixom, KSL

Second person arrested in connection with West Point homicide investigation

Davis County announced the arrest of a second person involved in a West Point porch shooting in May that led to the death of a veteran.

10 days ago

Sponsored Articles

...

Bear Lake

Road trip ready: How Bear Lake became the go-to destination for Western U.S. travelers

Whether you are chasing pristine beaches, fresh raspberry shakes, or endless water sports, this sponsored guide—brought to you in partnership with Bear Lake —uncovers everything you need to plan the ultimate getaway.   There’s nothing quite like the thrill of hopping in the car with your favorite snacks in tow and heading out for a […]

...

Harper Clinic

A new standard of care: How Harper Clinic’s IOP is changing the face of mental health treatment in Utah

This article is sponsored by Harper Clinic, a Utah-based clinic offering FDA-approved TMS therapy for treatment-resistant depression.    Utah’s mental health crisis is leaving many residents caught in an uncomfortable middle ground: struggling too much for weekly therapy alone, but unable to step away from work, parenting or daily life for inpatient treatment. As demand […]

...

Harper Clinic

Breaking free from depression: How Harper Clinic’s TMS Therapy can help

This article is sponsored by Harper Clinic, a Utah-based clinic offering FDA-approved TMS therapy for treatment-resistant depression.    The weight of depression is real. Many people spend years fighting it, adjusting medications, managing side effects and wondering if this is simply how life is going to feel.   According to the World Health Organization, depression affects […]

mental health...

Andrew Adams, KSL

Library discussions bring men’s mental health to the surface

Therapists say it’s common for men to repress things like trauma, grief, stress and anxiety. Now, a new weekly series of discussions aims to help men bring it all to the surface.

...

Bear Lake Convention & Visitors Bureau

Cozy up in Bear Lake: Discover the magic of a winter getaway

SALT LAKE CITY – The holiday season shines brightest when time slows down and loved ones gather. Gifts, decorations and festive music come and go, but shared experiences tend to last much longer. Research supports that idea. Dr. Theresa E. DiDonato told Psychology Today that vacations can strengthen relationships by creating meaningful time away from daily […]

...

Harper Clinic

Rewriting the path to healing: Inside Harper Clinic’s whole-person mental health model

OREM — A few decades ago, you’d have had a hard time finding a doctor to treat both your mind and body; And a century ago, you’d have been hard-pressed to find a doctor to treat your mind at all. Today, medical professionals are understanding more and more the undeniable connection between the body and […]

‘No Kings’ protest investigation is now in the hands of the DA