Steve Johnson (left), now of Massachusetts, is pictured with his brother Scott Johnson, who was the victim of a 1988 murder in Australia.

Thirty-five years after US mathematician Scott Johnson was pushed off a cliff to his death in a gay hate crime in Sydney, ... In 2005, and living back in Cambridge, Massachusetts, ...

In 1988, Scott Johnson, a gay American man, was found dead in Australia. His brother, Steve Johnson, has been trying to piece together what happened ever since.