A 51-year-old English teacher was found dead Saturday morning inside his rented row shophouse which was turned into an English teaching school in Phanthong district of Chonburi province.
The British national teacher was identified as Mr Bryan Patrick.
He wore only a black boxer shorts and died inside his bedroom on the second floor of the rented shophouse.
His death was alerted by his personal interpreter Mrs Tanannat Ziyago, 30, to the police after she and her Japanese husband broke into his bedroom when he did not come down as usual and didn't answer to knocks on the door.
The couple shared the same house with the English teacher.
Mrs Tanannat told police that Mr Patrick opened English teaching courses four months ago at the shophouse.
He used to complain with her that he had heart disease and didn't know how long he could live.
But he refused to see doctor saying he had to take some medicine constantly.
Thamrasami Maneerat Foundation volunteers brought his body to Phanthong hospital for post mortem examination, as well as the medicines for check to find the exact cause of his death.
Source: Thai Public Broadcasting Service (Thai PBS)