Chris Dawson, 74, was convicted in August after decades of speculation about Lynette Dawson's 1982 disappearance. A judge ruled Dawson killed his wife so he could continue his relationship with his teenage lover and babysitter. His lawyer has indicated he is likely to appeal against the conviction. Mrs Dawson was 33 when she vanished from her Sydney home. Her body is still missing and all the evidence in the trial was circumstantial. In his sentencing remarks on Friday, Justice Ian Harri...