Salt Lake City police are investigating the roles of two self-described "peacekeepers" following a fatal shooting at Saturday's protest that left one person dead and another injured, raising questions about unauthorized security at public demonstrations.

People protest Trump administration policies in front of the Arizona Capitol during the "No Kings" rally, part of a nationwide series of demonstrations on June 14, 2025, in Phoenix.

Pam Poindexter with Indivisible Outer Cape said the purpose of the protest was to draw attention to widespread dissatisfaction with the policies and practices of the Trump administration.

Detectives don’t yet know why Gamboa pulled out a rifle or ran from the peacekeepers, but they accused him of creating the dangerous situation that led to Ah Loo’s death.

Protests are planned for 1,800 communities nationwide on June 14, including more than 200 in California, the same day President Donald Trump holds a military parade in Washington, D.C.

New details from the Austin Police Department confirmed three arrests were made following the ‘No Kings’ protest at the Texas Capitol Saturday.