Wanchai, 22, a sleeper-car employee of the Railway of Thailand, confessed to raping on July 5 a 13-year-old girl, a Mathayom 2 student at Satrinonthaburi School, while she was asleep in a bunk of a carriage on the No.174 Nakhon Si Thammarat-Bangkok express train.
Wanchai subsequently threw her out the window, even though she was still breathing. She was killed by the fall. Searchers later found her body beside the rail track.