Tragedy at Utah "No Kings" protest as 39-year-old participant dies after being accidentally shot by event security responding to armed man with rifle.

The man Utah police describe as an innocent bystander slain after gunfire broke out has been identified as Arthur Folasa Ah Loo.

Utah resident Arthur Folasa Ah Loo, 39, was shot and critically wounded during the protest in Salt Lake City on Saturday, June 14. He later died in the hospital from his injuries, the Salt Lake City Police Department confirmed in a news release.

Protesters gathered in Salt Lake City's Pioneer Park Saturday evening, after a day of demonstrations across Utah and the nation.

From chants about democracy to immigration, organizers estimated more than 4,000 people held up signs, cheered the various speakers and waved American flags.

Local Utah leaders are preparing for the possibility of mass demonstrations in the wake of unrest surrounding ongoing protests in Los Angeles against President Trump’s anti-immigration

Gov. Spencer Cox addresses the protests in Los Angeles and President Trump's decision to deploy the National Guard and the Marines.

About 1,000 protesters gathered in Salt Lake City Thursday evening for a largely peaceful demonstration in support of immigrants as national debate on the issue heats up.