A court dropped murder charges against four national park officials over the disappearance of an activist almost a decade ago, but jailed one on a lesser offence.
It was the latest twist in a long-running legal saga after ethnic Karen leader Porlajee Rakchongcharoen, better known by his nickname Billy, went missing in 2014 while working on a lawsuit alleging officials had destroyed homes in Kaeng Krachan national park.
