'LOL assassin' may have been duped into killing Kim Jong Un's brother by 'friends' who told her to poison him 'as a prank', it is revealed, as a second woman and her boyfriend are arrested

The 'assassin' who allegedly murdered Kim Jong-un's brother (inset, top) at an airport in Malaysia is believed to have told authorities she thought she was convinced by friends it was a 'prank'. Police in Kuala Lumpur have arrested a 28-year-old woman named as Doan Thi Huong (inset, bottom), of Vietnam, in connection with the death of Kim Jong-nan, 46, on Monday. Video has emerged of her being led into a police car this morning (left). Officers have since arrested a second woman named as Siti Aishah (right), 25, from Indonesia, and her Malaysian boyfriend over the death.