 Dayton police need your help in finding a missing autistic woman. 18-year-old Christiana Pettis was last seen on Oxford Avenue Wednesday evening. We have a picture of her at whio.com. If you have any information, you can call 333-COPS. The coroner's office is identifying the body found in Dayton over the weekend. 39-year-old Amber Hissett was found near Wheatley and Victor Avenues on Sunday. There has still been no word on how she died or how her body ended up here. Dayton homicide detectives are looking into the incident. WHIO's Jake Magnata reporting.