Brett Button is appealing against his 32-year jail sentence for killing 10 people in a bus crash. (Mark Russell/AAP PHOTOS)Brett Button is appealing against his 32-year jail sentence for killing 10 people in a bus crash. This error took the sentence "into the stratosphere," Mr Rosser told the court during a hearing on Friday. Button has also argued the sentencing judge erred by finding the bus driver knew he was under the influence of the painkiller and the tipping point of the bus was only 31km/h. The bus crash devastated families in three states with many board members of the Singleton Roosters AFL club from the wedded couple's childhood home of Warrandyte.