Hangthong Thammawattana

Hangthong Thammawattana was born to Arkom Chatchaianand and Suwapee Thammawattana, the second son out of ten siblings (including an elder half-brother and an adopted sister). He graduated in civil engineering from the University of Texas at Austin and earned a master's degree in structural engineering from the Asian Institute of Technology.[2] He entered multiple marriages, and had sons Changwat and Tanthong Tumwattana.

Hangthong's mother Suwapee was matriarch of the Thammawattana family, who own and operate the Yingcharoen Market in the Saphan Mai area of Bangkok's Bang Khen District. The family fortune was the subject of a long-running inheritance feud which involved multiple assassinations, attempts and disappearances. Suwapee died in 1990, and her eldest son Therdchai (Hangthong's half-brother) was abducted and presumed murdered in 1991. Hangthong, the eldest surviving son, subsequently became head of the family.[3][4]

Hangthong entered politics and was elected to the House of Representatives in 1995, representing Bangkok's twelfth district (at the time) for the Thai Citizens' Party; he was re-elected in 1996. By 1999, he had had arguments with his younger brother Noppadol Thammawattana, who accused Hangthong of appropriating family funds for his political career.[4]

On 5 September 1999, Hangthong, Noppadol and sister Malika Leelapan had met with a legal adviser to discuss the handling of the family estate. Noppadol was probably the last person to see Hangthong alive at the family mansion in Bang Khen, where they lived. At around 03:00 on 6 September, Hangthong's body was found in an armchair in Noppadol's bedroom, with a gunshot wound to the head and a .38 revolver in his right hand.[4][5]

The police initially ruled the case a suicide. Several of the other siblings, however, refused to accept this explanation, believing that Hangthong was murdered as a result of the familial dispute. Younger sister Narumol had Scottish forensics expert Adrian Linacre weigh in on the case, and secured a second autopsy by celebrity forensics pathologist Pornthip Rojanasunand, who was Deputy Director of the Institute of Forensic Science. Both reached conclusions that supported murder. Noppadol, however, also enlisted the opinion of the famous American forensics scientist Henry Lee, who supported the original suicide finding, and a third autopsy by the Forensic Association of Thailand also found that suicide could not be ruled out.[4][5]

Noppadol was formally indicted on murder charges in January 2004. He was acquitted by the Criminal Court, which found Pornthip's testimony insufficient, in 2007. The ruling was upheld by the Court of Appeals in 2010. Noppadol also filed a complaint of ethical misconduct against Pornthip to the Medical Council of Thailand, which put her on probation for publicly commenting on the case. In 2014, the remaining members of the Thammawattana family finally settled 48 outstanding court cases they had filed against each other in the family dispute.[4][5]

• List of unsolved deaths