Monday's Australian Story centres on a crime that has been described as one of the 'top five' unsolved murder mysteries in Australian history. Twenty years after the heyday of the Ned Kelly gang, the nation was shocked by the brutal deaths of three siblings on a bush track. A young farmer Michael Murphy and his two sisters were bludgeoned to death near the town of Gatton, 100 kilometres from Brisbane in 1898. The trio were returning from a Boxing Day outing. The savagery of their deaths was all the more puzzling because of the absence of any apparent motive. Retired dentist, turned author Stephanie Bennett has spent years painstakingly trawling through archival evidence and she now believes she's cracked the case. Others are less convinced. But some Murphy descendants are grateful for her efforts. They say the crime scarred the family down the generations, and believe that Stephanie Bennett may indeed have delivered 'the truth'...