Officers from Don Chedi Police Station found the charred body near a pond, about 60 metres from Nong Son village where the unnamed victim lived.
The man had suffered severe burns to the head, torso and limbs. Police found a gallon-container of fuel and a lighter about 30 metres from the body.
The wife of the victim said that he had worked in a gristmill and lived in Thailand for the past 20 years. But when he turned 60, the mill had stopped hiring him.
He then became stressed and depressed. After seeing that her husband was missing from their bed this morning, the wife went out to search for him and found his body shortly after.