Cause of Pauline Hanna's death not determined by pathologist

A forensic pathologist said he cannot determine the exact cause of death of an Auckland woman the Crown believes was murdered by her husband. Dr Kilak Kesha carried out the autopsy examination of Pauline Hanna, who was found dead in her home in April 2021, Retired eye surgeon Phillip Polkinghorne has pleaded not guilty to Ms Hanna's murder and instead claims it was suicide, Jessica Hopkins reports.