Indonesian Siti Aisyah and Vietnamese Doan Thi Huong are accused of smearing Kim Jong Nam's face with the banned VX nerve agent at a crowded airport terminal in Kuala Lumpur on Feb. 13. The women, who face a possible death penalty if convicted, say they were duped into thinking they were playing a harmless prank for a hidden-camera TV show. The two women are the only suspects in custody in a killing that South Korea's spy agency said was part of a five-year plot by North Korean leader Kim Jong Un to kill a brother he reportedly never met.