Police say they have concluded their investigation into the death of Thamolwan “Wanjeab” Chaloemchaisri, an internet idol and club DJ, who was shot in the head by her boyfriend, who was later found dead.

Thamolwan, 23, was found dead in her apartment in the Huai Khwang area of Bangkok at 4.30am on Monday. She had a gunshot wound above her left ear, and a gun was found on her left hand, police said.

The scene initially suggested a suicide. However, police said that some abnormalities, including the fact that Thamolwan was right-handed, were pointed out during the investigation.

The victim’s boyfriend, identified only as Thinh, was seen leaving Thamolwan’s apartment at 6.37am on Saturday and was considered a prime suspect.

When police arrived at his apartment in the Sanam Bin Nam area of Nonthaburi, they heard a gunshot inside. Thinh, 41, was found lying on the floor and later died.

The investigation concluded that Thinh had killed Thamolwan.

Officers are still trying to determine whether Thinh’s motive for killing Thamolwan stemmed from online gambling losses. Friends told police that those losses ran to at least a billion baht.