Overview
- Salt Lake County prosecutors have charged volunteer security member Matthew Scott Alder with manslaughter, alleging he fired three rounds toward Arturo Gamboa and killed marcher Arthur “Afa” Ah Loo with one shot.
- At a news conference, Gamboa said he exercised his constitutional rights, insisted he never loaded or fired his AR-15-style rifle, and criticized media coverage that portrayed him as the perpetrator.
- Gamboa said he was shot in the back and had a finger grazed before being arrested the night of the June 14 march, then released about a week later after a habeas filing and without any charges.
- Charging documents note detectives found a disassembled AR-15, three loaded magazines, and a knife on Gamboa, and prosecutors later said his conduct could be perceived as alarming under Utah’s open-carry context.
- Alder has not been charged in connection with shooting and injuring Gamboa, and Ah Loo’s family is expected to pursue a wrongful-death lawsuit, according to attorneys.