Three people who were shot dead at a Seattle food festival have been named. Carlos Israel Sanchez Villalba, 44, Ashley Whitehead, 56, and Junior Cee Niko Semo, 19, were killed on Sunday, according to the King County Medical Examiner's Office. Mayor Katie Wilson confirmed on Monday afternoon that the teenager was involved in the gunfire exchange. A 15-year-old male was also arrested and police are looking for a third person. #seattle #thecrimedesk #katiewilson #CarlosISanchezVillalba #AshleyWhitehead #Junior Cee Niko Semo