(CNN) -- Controversial whistleblower Julian Assange was "a very bright boy with a keen sense of right and wrong" when he was growing up, according to his stepfather.
The young Assange grew up constantly on the move, the son of parents who were in the theater business in Australia.
Brett Assange, who now lives alone in Sydney, was Julian's first real dad, raising him from the age of one and giving him his surname.
In an exclusive interview with CNN affiliate Seven News, he described his stepson as a "sharp kid who always fought for the underdog."
He added: "Strangely enough I always thought he would do something like this. He was always very independent. And he certainly wouldn't take no for an answer.
"He always stood up for the underdog. I remember that, like with his school friends. He was always very angry about people ganging up on other people. He had a really good sense of equality and equity."
http://www.cnn.com/2010/WORLD/asiapcf/12/09/assange.profile/