Questions emerge about the way in which a suspect in Helen Puttock’s murder was eliminated, and Audrey revisits the crime scene to explore a lead that was never fully investigated. Writer, Producer and Presenter Audrey Gillan Producer and Story Editor Jack Kibble-White Producers Elizabeth Clark and Victoria McArthur Additional Reporting by Marcello Mega Researchers Molly Higgins, Amanda Johnston and Anna Miles Sound Designer and Composer Joel Cox Editors Heather Kane-Darling and Iona Macritchie