Silent Witness aired its final episode of series 27 on Tuesday, and while viewers were taken on a journey full of twists, they were left divided by the unexpected ending. The instalment which wrapped up the series saw Dr Nikki Alexander (played by Emilia Fox) and Jack Hodgson (David Caves) finally unmasking the “King’s Cross serial killer”. The episode was part two of a special in which the duo attempted to get to the bottom of a grisly mystery. In part one, they were called to King’s Cross Station Museum where they discovered eight bodies entombed underground. As they found out about a prolif…