The suspect, identified as Mr.Tyler Joseph Fulton Sheen Gerard, has been escorted back to Pattaya for interrogation after he was caught trying to cross the border into Cambodia through an immigration office in Sa Kaew province.
Police in Pattaya have also sought an approval from Pattaya provincial court for an arrest warrant for an Australian National identified as Antonio Beknato, on charges of assault and illegal detention depriving someone of his liberty.
A Thai woman, Ms Priew (surname unknown), has been held in police custody under suspicion that she might be involved in the crime. Police said Ms Priew was instructed by her Australian boyfriend to rent a pickup truck from Mr Manop Yuanyee who operates a car rental service in central Pattaya.
The truck was suspected to be used in the kidnap of Wayne Schneider. It was later found abandoned at Soi Kasetsin 5 on Khao Phra Tamnak, Pattaya South.
The victim, Australian man identified as Wayne Schneider, 37, was kidnapped from of his house by a group of masked men. His body was found buried in the roadside bush in Tambon Na Chomthien, Sattahip district on Tuesday.
Police on Wednesday searched a house on Phra Tamnak road in Bang Lamung district suspected to be the location where the victim was murdered to look for evidences which might be a clue on the murderers.