24-year-old Priyanuch “Preaw” Nonwangchai has told Khon Kaen Court that she was the only one who killed Warisara Klinjui, 22, whose body was dismembered and found buried in a forest area in Khon Kaen’s Khao Suan Kwang district in May. Priyanuch made the admission during a hearing of defence witnesses on Wednesday, with the final…