Shirley Shackleton, who passed away aged 91 on Jan. 15 was an author and tireless campaigner for Timor-Leste, she was best known as the wife of Greg Shackleton, one of the 'Balibo Five' journalists.

The ABC reported she was an unlikely hero.

A new mum and TV segment presenter from Melbourne, she suddenly became one of Australia's most vocal human rights advocates after her journalist husband Greg and four other Australian newsmen were brutally murdered in 1975 by Indonesian forces.

They came to be known as the Balibo Five, having gone to Timor in the weeks leading up to Indonesia's occupation, to film the military invasion for Channel 7 and 9.

But days after they arrived in Balibo, they disappeared.

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