A 15-year-old has been arrested in connection with a shooting at a crowded food festival near Seattle’s Space Needle that left three people dead over the weekend, police said. According to a court document filed in juvenile court, investigators now believe there were at least three shooters involved in the violence. Among them is the arrested teen, an acquaintance who died at the scene, and at least one other unidentified suspect. The shooting took place at the festival, which was packed with attendees. Police have not released details on the motive or the circumstances leading up to the shootout. The 15-year-old suspect did not appear for a scheduled initial court appearance on Monday, and authorities are continuing their investigation. The incident has shocked the community, with officials vowing to bring all responsible parties to justice. The investigation remains ongoing as police search for the third suspect.