By Tim Brown of RNZ Hours after baby Soul Turany died from catastrophic head injuries at Christchurch Hospital, the boy's mother sent a text message to her then-partner. "I still don't understand why I haven't heard from you. Soul has passed away," she wrote. Police say either Storme Turany or Tony Farmer must have inflicted the injuries that killed the 16-week-old child, some time on the morning of 30 August 2014 at their rural home near Darfield. He died early on 31 August. Clinicians have told an inquest that Soul could not have injured himself, the person who did it would have known what they had done and he would have been unconscious soon after the assault. Turany sent the message to Farmer at 5.43am on 31 August. "I'm so sorry about Soul. I want to be there for you. I don't know what to do," Farmer replied. The pair continued to exchange messages over the following days, with Turany inviting Farmer to Soul's funeral.…