Law enforcement officials say the alleged gunman who fired into a crowd killing two people at a Washington state music festival Saturday was stationed at a U.S. Army base in Washington.

The two people killed were Seattle residents Brandy Escamilla, 29, and Josilyn Ruiz, 26, Grant County Coroner Craig Morrison said Tuesday. Escamilla died of a gunshot wound to the head, and Ruiz died from a gunshot wound to her torso, Morrison said. The two were engaged to be married, according to a fundraising campaign by family members.

Lily Luksich, 20, of Mill Creek, Washington, and 31-year-old Andrew Cuadra of Eugene, Oregon, were shot and wounded, according to the sheriff.