Mr Pozhitkov was found dead in the kitchen of his pool villa in Rawai yesterday afternoon (February 3).
He was discovered with a head injury, bruising to his body, and a deep hole in the back of his neck.
The doctor who carried out the initial examination at Vachira Hospital Phuket said he could not explain the deep hole, and could not identify the cause of death.
Mr Pozhitkov’s body will be sent to Surat Thai province where a full autopsy will be conducted.
Chalong Police Deputy Superintendent Lt Col Jamroon Plaiduang said Mr Pozhitkov’s friend, Vadin Rogov, 41, who lived with him in the house and first found him dead, was being questioned.
Mr Rogov told police that Mr Pozhitkov had been drinking excessively since New Year’s Eve, and believed his friend was drunk and fell and hit his head, which lead to his death.
Lt Col Jamroon said that by the time the police arrived at Mr Pozhitkov’s house, they found a number of alcohol bottles as well as numerous drops of blood around the untidy house.