Silent Witness is teasing an exit for one of the fan favourite characters. The BBC show is back tonight for another episode, which sees Dr Nikki Alexander and Jack Hodgson take on their latest case. The BBC show has been disrupted over the last couple of weeks, when different episodes have aired due to its similarities to real life events. Due to a real life attack in Birmingham which had similarities to the plot, the BBC switched the episodes to series 29's fifth and six episode, called