THE young nephew of backpacker killer Ivan Milat has failed to appeal the 43-year jail sentence handed down over the chilling thrill murder of teenager David Auchterlonie.
Milat and his friend Cohen Klein were found to be "in the worst category" of murderers when they were sentenced in 2012.
The NSW Supreme Court heard they had lured David into the same NSW forest where Milat's notorious uncle had hidden the bodies of his victims, during his 17th birthday celebrations.
After taunting him and making him plead for his life for more than 10 minutes, Milat hit him in the head with an axe - a moment which was captured on mobile phone video and played during the court proceedings.
The court also heard that in the lead-up to the court case, Milat had borrowed the axe off his friend, laughed and said "first one to 10".
The judge found Milat and his lack of empathy posed a substantial risk to the community and jailed him for 43 years with a non-parole period of 30 years.
Klein was given 33 years with a non-parole period of 22 years.
Both appealed on the grounds the sentences were "manifestly excessive".
The NSW Court of Appeal dismissed Milat's appeal but quashed Klein's sentence and ordered he be eligible for parole after 20 years.
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