The defence of Philip Polkinghorne has pushed one message at the last day of his trial: this man is no killer. The jury in the trial of the former Auckland eye surgeon, accused of murdering his wife in 2021, have heard the final closing arguments from the defence. The crown has described Polkinghorne as a master manipulator who strangled Hanna and staged her death. The defence maintains she took her own life, a warning this story mentions suicide. Maia Ingoe reports.