teenager with a deadly brain tumour has raised the majority of $ 80,000 needed to fund his life-saving surgery .
three weeks ago mr byrnes was told by doctors that he had a stage four brain tumour that was too deep and aggressive to be safely operated on .
after nine days of desperate campaigning through facebook and the crowd funding page gofundme , the casino teenager is nearly there with less than a day to go .
knowing that this was not enough .