The death of mathematician Scott Johnson was initially called a suicide, but his family pressed for further investigation. Steve Johnson with his sisters, Terry, left, and Rebecca and his wife Rosemarie, second right, arrive at the Supreme Court in Sydney on Monday for a sentencing hearing in the murder of Scott Johnson - Steve, Terry and Rebecca's brother.ĬANBERRA, Australia - An Australian man was sentenced to 12 years and seven months in prison Tuesday for the 1988 murder of an American who fell off a Sydney cliff that was known as a gay meeting place.