According to the Khmer Times, British national Toby James Nelham, 44 will be handed over to Thai authorities following his arrest in Cambodia earlier last week.
Mr Nelham is accused of being the mastermind behind the assassination of British man Tony Kenway in Pattaya on January 24.
On Friday, Thai media reported that police investigating the murder believe that Mr Kenway had owed Mr Nelham 8 million baht and it was this that was the motive to the murder.
Contrary to earlier reports, Thai police had sought the help of the authorities in Cambodia to track down two other foreigners who were believed to involved in the murder of Tony Kenway.
Documents issued by Pattaya Court named South African Abel Caldeira Bonito, 23, as the suspected gunman, while Miles Dicken Turner, 27, a Briton is accused of being the getaway driver to the crime scene.
Police in Thailand discovered the two men fled to Cambodia just hours after the murder.
The search for the men by Cambodian police focused on Sihanoukville, where the men are thought to have had links. Police there have been handing out wanted posters and making appeals on social media for information about the two men.
(Source: ThaiVisa News)