It's quite a dangerous occupation in Thailand.
https://cpj.org/data/killed/asia/thailand/?status=Killed&motiveConfirmed[]=Confirmed&type[]=Journalist&cc_fips[]=TH&start_year=1992&end_year=2021&group_by=location
Quote from one of those listed in the link ...
Surat Thani police believe Withayut, 56 [a radio journalist], was killed as a result of his reporting on irregularities involving a 50 million baht (US$1.1 million) real estate deal for a municipal garbage dump. The reports began in 1999 and eventually led the Interior Ministry to investigate and to order a portion of the money returned to the government.