The fire, which ripped through the eight-storey hotel, killed Pongsakorn Boon-aram and caused 11 others, including several foreigners, to be hospitalised with smoke inhalation.
After a meeting with investigators, Khamronwit said witnesses saw Pongsakorn going to eight spots where fires started, while a lighter was found near his body. Pongsakorn’s suicide note stated that he was “attached” to the hotel and “was ready to go down with it”.