A safety volunteer has been formally charged with manslaughter following the fatal shooting of a man at a 'No Kings' protest in Salt Lake City last June, prosecutors announced on Wednesday, 3 December 2025.
Details of the Fatal Incident
The shooting occurred during a demonstration in June. According to the Salt Lake County District Attorney's Office, Matthew Alder, who was acting as a safety volunteer, allegedly opened fire, injuring one man and killing another. The deceased victim has been identified as Arthur Folasa Ah Loo, a beloved local fashion designer, husband, and father.
The man who was injured, Arturo Roberto Gamboa, was reportedly holding a rifle at the time. Prosecutors stated that Gamboa will not face any charges in connection with the incident. Police had initially arrested Gamboa on suspicion of murder, arguing he created the dangerous situation that led to Ah Loo's death.
Legal Proceedings and Community Reaction
Salt Lake County District Attorney Sim Gill made the charging announcement. In a statement, Gill expressed sympathy for the victim's family and the community. "We appreciate the patience of the family of Mr. Ah Loo and the community as our office went through the screening process. We grieve the loss of Mr. Ah Loo as a husband, father, and active member of our community," Gill said.
An attempt to reach Alder's legal representative, lawyer Phil Wormdahl, for comment was not immediately successful. The case now moves forward through the Utah legal system.
The Context of Firearms in Utah
This tragic event unfolded in Utah, an open-carry state. This means individuals who are legally permitted to own a firearm are generally allowed to carry it openly on public streets. This legal backdrop is a significant factor in the district attorney's decision-making process regarding charges.
The case highlights the complex and sometimes deadly intersections between public protest, volunteer security, and firearm laws in the United States.
