Si Quey was a Chinese immigrant that moved to Thailand in 1944. A former soldier who fought the against the japanese in World War 2. He became a serial killer who suffocated and ate the hearts and liver of more than 6 male children in Thailand. He apparently believed it would make him stronger, healthier and possibly immortal. He was finally captured and executed by hanging in the 1958. His body was then placed in the Songkran Niyomsan Museum of Forensic Medicine as a warning to potential killers. He has since become a bogeyman for Thai children as parents threaten misbehaving children with a visit from his ghost.
His cadaver was filled with and covered by paraffin wax.