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.

Police responded to a shooting incident at a protest near 151 South State Street in Utah on the evening of Saturday, June 14. One person was found with a 'critical gunshot wound' and was transported to the hospital,

A breakdown of who was charged with what and why wasn't immediately available, but the protest and related marches shut down streets throughout the day and into Saturday night.