Three medical experts have given conflicting evidence to the inquest into the death of 14-year-old Brian Rossiter about when the schoolboy received the injury which led to his death.
Neurosurgeon Charles Marks was the consultant who operated on Brian Rossiter when he was admitted to Cork University Hospital.
He said he believed on the balance of probability that Brian Rossiter sustained the injury which led to his death 56 hours before his admission to hospital - a time which corresponds with the assault on the schoolboy by Noel Hannigan.
Charles Marks said he was not at all certain of this, but that was his conclusion.
State Pathologist Dr Marie Cassidy told the inquest she could not say when Brian Rossiter sustained the fatal injury - she said people were getting caught up in trying to be specific, to date things that were impossible to date.
While Professor Christopher Milroy, a British Home office pathologist for 17 years who reviewed the 14-year-old's file, said it was more likely that he sustained the fatal injury after the day he was assaulted by Noel Hanning and closer to the time he was found unconscious in a cell at Clonmel Garda Station.
The Coroner’s Court in Cork was told that Brian died of a brain haemorrhage due to blunt force trauma.
Court told of final medical efforts
The 14-year-old was found unconscious in a cell in Clonmel Garda Station on 11 September 2002.
This morning, Dr Marks told the inquest that they had accepted Brian in Cork from St Joseph's Hospital in Clonmel when 'things were pretty desperate'.
He said Brian had a extradural haematoma - a very large puddle of blood between his brain and skull - and while things were fairly hopeless they took out the brain clot in a routine 40-minute operation, but there was no improvement and he was technically dead.
Dr Marks concluded that on the balance of probabilities, that the trauma he sustained 56 hours before was the most likely cause of his extradural haematoma and his death.
He said he did not think that the youngster sustained a further significant trauma. From what he knew of headaches, he said that is enough for him to explain his deterioration that morning.
The inquest continues tomorrow.