The Disappearance of Porlajee “Billy” Rakchongcharoen
Karen rights activist Porlajee “Billy” Rakchongcharoen was last seen on April 17, 2014 after national-park officials detained him. Burned bone fragments recovered years later were linked to his mother through DNA testing, but a Thai court ruled the evidence insufficient to prove the remains were Billy’s or that he had been murdered. Four officials were acquitted of abduction and murder in 2023; one was convicted only of a lesser duty-related offense.
Porlajee Rakchongcharoen, widely known as “Billy,” was a Karen community and land-rights activist. He was 30 when he disappeared in 2014 while involved in efforts connected to the rights of Karen villagers around Kaeng Krachan National Park. The last undisputed event in the public record is his detention by park officials on April 17, 2014. What happened after that remains unresolved.
Last seen in official custody
Park officials acknowledged detaining Billy on April 17, 2014 over allegedly collected wild honey. Then-park chief Chaiwat Limlikit-aksorn maintained that Billy was released with a warning. Billy did not return to his family and was not subsequently seen in a way that resolved his whereabouts.
The disappearance attracted sustained scrutiny because Billy had been advocating for ethnic Karen villagers and was connected to litigation over alleged destruction of homes in the park. Those circumstances form important context, but they do not by themselves prove who caused his disappearance.
Bone fragments and a disputed forensic conclusion
In 2019 investigators recovered burned bone fragments from a reservoir area in the park, including material associated with an oil drum. DNA testing produced a maternal match to a sample from Billy’s mother.
That finding became central to the prosecution theory. However, at the 2023 trial, the Central Criminal Court for Corruption and Misconduct Cases ruled that the fragments and DNA evidence were not sufficient to establish that the remains belonged to Billy. The court also held that the evidence was insufficient to prove he had been murdered.
The 2023 trial
Chaiwat and three other park officials faced charges that included unlawful detention, abduction-related offenses, premeditated murder and concealment of a corpse. On September 28, 2023, the court acquitted all four defendants of the abduction and murder allegations because it found the prosecution evidence inadequate.
Chaiwat was convicted of a separate, narrower offense for failing to properly report or process Billy’s detention and received a three-year prison sentence. He was granted bail and said he would appeal that conviction. The other three defendants were acquitted of all charges in the case.
Why the case remains unresolved
After the verdict, Billy’s family said it intended to appeal the acquittals. His wife said the ruling still left the family without an answer about where he went. Later reporting in 2025 continued to describe the murder charges as having ended in acquittal while discussing Chaiwat in connection with separate administrative and corruption matters.
Crime by Region therefore classifies this file as Unsolved / Partial. The courts did not establish who caused Billy’s disappearance or prove a homicide, and the lesser conviction against Chaiwat concerned the handling of the detention rather than responsibility for Billy’s disappearance or death.
The maternal DNA match is reported because it was an important investigative development. It is not presented as definitive identification because the trial court expressly found it insufficient for that purpose. Chaiwat and the three other officials are not described as murderers; they were acquitted of those charges.
Timeline
- Billy is detained
Park officials detain him at Kaeng Krachan National Park. Officials say he was released; he is not seen again.
- Burned bone fragments recovered
Investigators find fragments near a reservoir and report a maternal DNA match to Billy’s mother.
- Four officials face serious charges
Proceedings move forward on allegations including unlawful detention, murder and concealment of a corpse.
- Murder and abduction charges end in acquittals
The court finds the evidence insufficient. Chaiwat alone receives a three-year sentence for a lesser duty-related offense.
- No later murder conviction located
Later reporting continues to describe the 2023 murder acquittals; Billy’s fate remains unresolved.
Sources and further reading
- Associated Press — September 28, 2023 account of the acquittals, forensic ruling and family’s plan to appeal
- Reuters — September 28, 2023 report on the lack-of-evidence ruling and Chaiwat’s lesser conviction
- The Nation Thailand — September 28, 2023 summary of the charges, acquittals and three-year sentence
- The Nation Thailand — June 15, 2025 later reporting that continues to describe the murder acquittals
Last reviewed: September 4, 2026