Footage from an airport security camera showed Vietnamese defendant Doan Thi Huong "practicing" wiping the face of a stranger two days before she allegedly took part in the murder of the estranged half-brother of North Korean leader Kim Jong Un using a similar technique, police told a Malaysian court on Tuesday.
Azirul Nizam Che Wan Aziz, the investigating officer, said he reviewed the CCTV footage taken at Kuala Lumpur International Airport's budget terminal on Feb. 11 and compared it with footage taken the day of the attack that killed Kim Jong Nam.
Huong, 29, and Indonesian Siti Aisyah, 25, are on trial for murdering Kim on Feb. 13 in the departure hall by smearing his face with VX, a highly lethal nerve agent that is listed as a weapon of mass destruction by the United Nations and is banned by the 1993 Chemical Weapons Convention.