Officers took about five hours to find the house after the photo of the man, who was pointing a gun at his head, along with a depressed message, was posted on Facebook.
Police finally identified the house at Koh Sirey in Rassada east of Phuket Town. Police found the man had already gone to sleep in his bedroom.
Today police will be questioning him and checking the legality of the gun and ammunition. They will also ask him to seek help.