A dark blue Honda Civic has been impound and a .765 calibre handgun seized as evidence.
The police department revealed the two suspects have admitted the murder and that there were several motives. Unsettled business dealings, women and other personal matters were given.
Mr. Nonthapat said that at the time of the killing the victim had been harassing them on his motorbike and they thought he was going to shoot at them.
So he rolled down the passenger side window and fired four times before telling Mr Wirayuth to drive away.
After the murder Mr Nonthapat went to hide in Buriram but Mr Wirayuth stayed in Pattaya and re-sprayed his car in the hope of disguising it.
The two men have staged a reenactment of the crime (See gallery)