<p>Audrey builds up a picture of Irvine McInnes and uncovers startling new information that may explain how he became connected to the scene of Helen’s murder.</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, Anna Miles and Fergus Smith</p><p>Sound Designer and Composer Joel Cox</p><p>Editors Heather Kane-Darling and Iona Macritchie</p>