When Brisbane based real estate agent Gerard Baden-Clay woke up at 6 AM on the morning of April 20 2012, there was no sign of his wife, Allison. This wasn’t completely out of the ordinary, as Allison sometimes went for early morning walks around their Brisbane neighbourhood. She was always home in time to get the couple’s three daughters ready for school, but when 7:15 rolled around, there was still no sign of her.