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Published: 00:01, 11 June 2014 |
Updated: 10:40, 11 June 2014
But instead north Kent coroner Rebecca Cobb was forced to apologise to his family and legal representatives because an error meant there were not enough jurors.
Although there were seven, which is the legal minimum, one of them had not heard any of the previous hearing's evidence.
An eighth juror, who is now living in Birmingham, had not been required to attend and unavailable at short notice for the hearing.
Angry family members branded the error "disgusting" and said another delay would be "totally out of order". Legal representatives also said it was "extremely disappointing".
Callum's mother Karen Hodgson told Miss Cobb she was also concerned a further delay would mean witnesses would be unable to accurately recall what happened on the day.
They had already waited 18 months for the resumption of the hearing, which was adjourned for what was expected to be a short period for the coroner to prepare her summing up of the evidence to the jury.
Now a new inquest with a new jury on a future date will have to be organised and all the witnesses re-called and their evidence heard again.
Mr Osborne, of City Wall Avenue, Canterbury, had been working for Cooper Services Ltd on groundworks for new bungalows in Bridgefield Road, Swalecliffe, in April 2011 when the tragedy happened.
He was standing in a deep trench in which utility pipes were being laid when a section collapsed on him.
Rescuers fought with their bare hands to try and dig him out. But by the time he was freed he could not be revived by paramedics.
At the time of his death, he was living with his partner, Colette Scott - now Osborne - who gave birth to their baby daughter just a month later.
Afterwards, she said: "I'm really upset. Three years after Callum's death and we still do not have the answers and now we have to start the whole process all over again.
"I am now worried that not all the evidence will come out."
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