The suspect, who is in his 40s and spotted with a large tattoo on his right arm, was apprehended by a team of Thai police officers in Chaiyaphum province, about 260km northeast of Bangkok around 7am on Tuesday (May 29).
"The man is the most sought-after suspect in the murder case. He is the alleged mastermind," Royal Malaysian Police assistant liaison officer in Thailand Supt Ridzuan Abdul Aziz told Bernama here.
His capture by Thai following a request for assistance from their Malaysian counterpart several months ago, finally brought an end to an extensive hunt by authorities of both neighbouring countries which stretches two borders and several thousand kilometres.
They will also explain issues on the man's impending extradition to Malaysia to face justice for his alleged crime.
In an interview with Bernama in Bangkok last January, Bukit Aman's Criminal Investigation Department chief Datuk Seri Wan Ahmad Najmuddin Mohd disclosed that several of the suspects involved in the high-profile petrol station murder case had escaped and gone into hiding in Thailand.
The police he said, had sought cooperation from Thai police to track down the suspects and mastermind.
During the interview, the CID chief also expressed the police's confidence on tracking down the suspects and bringing them home to Malaysia to face justice for the grisly murder.
The police according to him, got the suspects' photos and other records of their entry into Thailand.
A video clip of the incident went viral on social media.
In the Dec 17 brutal incident, a 44-year-old man known as "Ah Chiu" was stabbed and run over by a white BMW car at Taman Pelangi petrol station.
The police swung into action and arrested several men and women suspected to be linked to the case.
The police have also charged two suspects last January, while maintaining a hunt for several other suspects who remained on the run.