Marco Fuentes, an 18-year-old from Sunnyside, Washington, was killed in the early hours of August 13, 2017. He was at a large party near Mabton in Yakima County when gunfire erupted about 3 a.m. Marco sustained multiple gunshot wounds to his torso and was taken to Prosser Community Hospital, where he was pronounced dead. Another partygoer suffered non-life-threatening injuries and was treated at Sunnyside Community Hospital.

The Yakima County Sheriff’s Office opened a homicide investigation. Although many people were at the gathering, authorities have not publicly released details about what triggered the shooting or identified any suspects, and no arrests have been reported. The investigation remains open and unresolved.

If anyone was at the party or has information about the shooting, please contact the Yakima County Sheriff’s Office.