By Tim Brown of RNZ The cause of a Canterbury baby's catastrophic head injury remains a mystery more than a decade after the child's death. Soul Mathew Turany was 16-weeks-old when he was flown to Christchurch Hospital after emergency services were called to the rural home near Darfield where he lived with his mother Storme Turany and her then-partner Tony Farmer. Doctors at Christchurch Hospital found the boy had a fractured skull and bleeding in his brain and eyes. He died in the early hours of 31 August 2014. No-one has been charged over his death. Soul would have turned 12 on Saturday but the circumstances that led to the end of his brief life were instead being examined by Coroner Ian Telford during a two-week inquest in Christchurch. "His life was short but he was precious. He was a gift to the world for every second of the three months, 22 days that he lived," he said. "One way that I describe the coronial task is this - where there are shadows, we are there to turn on the lights.…