The two women, Ms Rosarin, and her mother are being held in police custody at Banpot Pisai district police station on charges of conspiring with the other people in murdering Mr Rapin Klinkesorn, brother of Pol Lt-Gen Rewat.
The victim’s body was found in his burned car abandoned in the woods at Khao Kalon, Charnvoralak Buri district of Kampaeng Phet province.
A girl friend of Mr Rapin, Ms Rosarin was first arrested after police examined video footages of surveillance cameras in Nakhon Sawan and found Ms Rosarin’s car following Rapin’s car.
During subsequent interrogation, Ms Rosarin admitted she borrowed 800,000 baht from Rapin and was unable to settle the debt so she and her mother plotted to have him drugged and hired a youth to get rid of him.
Police said the unidentified youth stabbed the victim to death and then set fire to the body and his car.