IT cannot be proved how, where, when or what caused the fatal injuries of a baby girl but a jury has heard there are 31 pieces of evidence that show her stepfather murdered her.
Brendon Toohey, 38, says he was taking clothes off a washing line when the 11-month-old girl fell from a trampoline and hit her head on a metal bar attached to a septic tank in the backyard of her home in the state's central west.
"She cried straight away, so I picked her up and rubbed her, and then she stopped crying, and then she was not breathing properly so I put her in the car and flew straight … into the hospital," Toohey told police on the afternoon of her death on April 2, 2014.
The day after her death he told Homicide detectives: "She was in my care when it happened. I've gotta live with that for the rest of my life."
But the prosecution argues he killed her by intentionally inflicting five blunt force injuries to her head which cannot be explained by a fall from "a relatively short height".