FILE PHOTO: Vietnamese Doan Thi Huong (L) and Indonesian Siti Aishah are seen in this combination picture from undated handouts released by the Royal Malaysia Police to Reuters on February 19, 2017. Royal Malaysia Police/Handout via Reuters/File Photo KUALA LUMPUR (Reuters) - Two women accused of murdering the estranged half-brother of North Korean leader Kim Jong Un with a banned nerve agent pleaded not guilty at the start of a high-profile murder trial in a Malaysian court on Monday.