(Hillsboro, OR) -- A Banks High School teacher who was previously charged with sexually abusing a student now faces new charges. During the investigation of Wymon Smith, detectives talked with nearly 20 people who had concerns and reported abuse dating back 25 years. A Washington County grand jury indicted him on new crimes and he was arrested on Thursday. Smith also worked as a teacher in Nevada in the 1990s and in Astoria in the early 2000s. Investigators believe more victims will come forward.