It was the lie that rocked Australia. A young, beautiful woman is given the terrible news she has inoperable brain cancer and only four months to live. Belle Gibson is courageous - she tries chemotherapy and radiotherapy before turning to alternative medicine to battle the disease. Thankfully it seems to work and she tells the world through social media, encouraging others to try the same. It's a truly inspiring story. Hundreds of thousands of sympathetic followers and fellow sufferers live every step of her journey and celebrate her success as she becomes the poster girl for the alternative wellness industry. There's an award-winning app, and a cookbook. But it is all a lie. As Tara Brown reveals, Belle Gibson profited from the false hope she gave vulnerable people living with disease. And that is a true crime…