<span style="color: #222222;">A Vietnamese woman who stood trial for the assassination of the North Korean leader Kim Jong Un's half-brother was freed from prison Friday, bringing down the final legal curtain on a dramatic and bizarre two-year murder mystery.</span><br />'' <br />'' <span style="color: #222222;">Kim Jong Nam, the estranged relative and once seen as heir apparent to the North's leadership, died in agony after having his face smeared with a banned nerve agent as he waited at Kuala Lumpur airport in February 2017. </span><br />'' <br />'' <span style="color: #222222;">The sensational killing made headlines around the world and sparked a furious diplomatic row as Seoul accused Pyongyang of an elaborate plot to murder a figure who had spent years in exile and been critical of his family's rule.</span><br />'' <br />'' <span style="color: #222222;">Doan Thi Huong from Vietnam and Indonesian Siti Aisyah were arrested after being spotted on CCTV approaching Kim but always denied murder. </span><br />'' <br />'' <span style="color: #222222;">Then the murder charges were withdrawn last month against Huong, who pleaded guilty to a reduced count of causing injury and was told she would be released in May at the end of her sentence. </span><br />'' <br />'' <span style="color: #222222;">More than two years after her arrest, the 30-year-old former hair salon worker was freed from a prison outside the Malaysian capital today.</span><br />