Karl Charleyboy, 22, was fatally shot on March 28, 2015, in a wash on the outskirts of Tonopah, Arizona. The Maricopa County Sheriff’s Office responded to the scene in the remote desert community and investigated the shooting as a homicide.

Initial reports say Charleyboy had been waving a gun in the moments before he was shot, but the circumstances that led to the display of the weapon and what provoked the fatal encounter are unclear. Authorities have not released who else was present, and no suspects or arrests have been publicly identified.

If anyone was in the Tonopah area that night or has information about what happened in that wash, please share what is known with investigators.