Earlier this year, an inquest found the teenager likely got lost in the jungle, after leaving her family's cottage on her own.
It ruled out the involvement of other people in the teenager's death.
Nóra's parents have consistently said they believe someone else was involved, and said they were 'utterly disappointed' by the coroner's verdict.
Now, a Malaysian judge has changed the verdict from 'misadventure' to 'open verdict'.
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