Safety volunteer arrested for fatal shooting of protester in Utah

A safety volunteer in Salt Lake City has been formally charged with manslaughter for the deadly shooting of a protester during a June "No Kings" demonstration. Matthew Scott Alder, 43, fired his weapon during the protest, aiming at a man he believed posed a threat, but inadvertently killed a bystander.

The incident occurred on June 14 when Alder saw Arturo Gamboa, 24, carrying a rifle. Believing Gamboa intended to carry out a mass shooting, Alder discharged three rounds. Gamboa was injured, while Arthur Afa Ah Loo, who was recording the protest, was fatally struck.

Salt Lake County District Attorney Sim Gill explained, The right to use lethal force exists, but it cannot be executed recklessly, emphasizing the legal basis for the manslaughter charge.

Authorities did not arrest Alder immediately after the incident. Gamboa was detained for a week but faced no charges. His attorney noted that Gamboas rifle was unloaded and pointed downward at the time. The district attorney affirmed that under Utah law, carrying firearms publicly is permitted, and no charges will be filed against Gamboa.

Although mistakenly identified as a threat, Gamboa had a history of attending public demonstrations with his AR-15 style rifle for self-protection and to safeguard fellow protesters, including at 2020 police violence protests.

Ah Loos widow, Laura Ah Loo, expressed that filing charges against Alder is an important step toward safer public events, stating she hopes it sets a precedent for future gatherings.

If convicted, Alder could face up to 15 years in prison and a $10,000 fine.

Author: Gavin Porter