Reasonable Doubt Ancient Giants Reasonable Doubt In 2003, Kathleen Folbigg was found guilty of killing her 3 babies and 1 toddler. Initially, all four children were found to have died of natural causes but after forensic pathologists learned of the other deaths, they changed their opinion. Kathleen was sentenced to 30 years in prison. Now 10 years on, leading criminal, medical, legal and psychological experts believe Kathleen Folbigg should be set free. In this special report, 60 Minutes details how the jury was misled, the dodgy evidence the conviction was based on and, tragically, how multiple infant deaths in the one family, while rare, can and have happened around the world. You'll see never before seen parts of Kathleen's police interview, hear her inner most thoughts from inside jail and meet ‘Team Kathleen' - the supporters pushing for a judicial review. And viewers will get to have their say through a live poll on the 60 Minutes ipad App and the 60 Minutes facebook page. Reporter: Tara Brown Producer: Jo Townsend Ancient Giants The Nullarbor Plain is famous for its emptiness. Vast and Barren. But that wasn't always the case. More than 50,000 years ago they resembled the plains of Africa. Giant creatures, scientists call mega fauna, roamed the outback. There was a giant kangaroo, a massive wombat, even an Australian lion. Today they have all gone, but the search for their remains is hotting up. It's a quest that takes palaeontologists deep underground, into a secret cave, somewhere on the Nullarbor. It's beautiful and breathtaking, and contains some of the most spectacular fossils you'll ever see. Reporter: Allison Langdon Producer: Nick Greenaway