Several families of those killed in Australia's worst road crash in decades say they have been left devastated after learning manslaughter charges against bus driver Brett Button cannot be reinstated.
The 59-year-old was given a plea deal in exchange for admitting to lesser charges over the smash that killed 10 wedding guests and injured dozens more in June 2023.
Fathers Adam Bray and Matt Mullen have since attempted to reverse the charges in a bid to get justice for their son and daughter who died when their coach slammed into a guard rail and rolled near Greta in the NSW Hunter Valley.