Pistorius Trial: The Key Questions (2013)

He became the first ever double amputee to compete in the Olympic games, a symbol of triumph over adversity, and one of the world's most recognisable superstars. Yet just six months later, he was arrested and charged with the premeditated murder of his girlfriend Reeva Steenkamp. How could such an admired sporting champion and role model to millions be involved in such a shocking event?