How will Silent Witness move forward after that massive death and Lizz Carr’s exit?

How can Silent Witness move forward? (Picture: Sally Mais/BBC)
Silent Witness closed series 23 tonight with 60 minutes packed full of drama and excruciating plot twists. As Jack Hodgson (David Caves) fought for his life after being exposed to a deadly nerve agent, Thomas Chamberlain (Richard Lintern), Nikki Alexander (Emilia Fox) and Clarissa Mullery (Liz Carr) all raced to desperately find the truth behind the poison so they could save their friend.
However, Jack’s accident was just a red