Prosecutors have showed a Malaysian court airport security videos detailing the movements of four men suspected along with two women on trial of having the intent to kill the estranged brother of North Korea's leader.
Police chief investigating officer Wan Azirul Nizam Che Wan Aziz told the court on Thursday that security footage from the Kuala Lumpur airport showed the four men before and after the attack on Kim Jong Nam on February 13.
Vietnamese suspect Doan Thi Huong and Indonesian defendant Siti Aisyah are the only two people in custody in the case and pleaded not guilty to murder when their trial began earlier this month.
Police chief investigating officer Wan Azirul Nizam Che Wan Aziz testified earlier that the four male suspects at large were known only by pseudonyms.
"My investigation showed that Hanamori played the role as the mastermind of this incident," Wan Azirul testified. Hanamori was also known as Grandpa or Uncle.
The police official said Hanamori was the first to arrive at the airport and met separately with each of the other three men before the attack.
After the two women rubbed Kim's face with a liquid later identified as VX nerve agent, Hanamori and the suspects known as Mr. Chang and Mr. Y took the same vehicle from the budget terminal to the main airport terminal, Wan Azirul said.
Security video footage from the departure hall of the main terminal showed the three men had changed their clothes.
Malaysia has never directly accused North Korea, but South Korea's spy agency has claimed the attack was part of a plot by North Korean leader Kim Jong Un to kill a brother he reportedly never met.
Kim Jong Nam was a virtual exile not known to have actively been seeking influence over his younger brother.
