<p>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.</p><p>Writer, Producer and Presenter Audrey Gillan</p><p>Producer and Story Editor Jack Kibble-White</p><p>Producers Elizabeth Clark and Victoria McArthur</p><p>Additional Reporting by Marcello Mega</p><p>Researchers Molly Higgins, Amanda Johnston and Anna Miles</p><p>Sound Designer and Composer Joel Cox</p><p>Editors Heather Kane-Darling and Iona Macritchie</p>