Why investigate one unnamed rescuer?

This man fled Iran after being imprisoned and tortured for protesting the regime. Known only as AB, he came to Australia hoping to start again — and, in many ways, he did. He found love and started a family. But he also made poor choices, fell into drugs and became violent towards his partner. Now his future in Australia is in jeopardy. He was living with those consequences when the Bondi terror attack unfolded around him. He ran towards the gunfire, and risked his life to help others. Now the country that once gave him refuge wants to deport him.