Did Ivan Milat really act alone? And could lost documents link him to unsolved murders?
The Crown prosecutor who put Ivan Milat behind bars believes the notorious serial killer may have had help with some of the murders.
This episode, Tim and Xanthe take you inside the latest NSW parliamentary hearing into unsolved murders and missing persons where crucial questions were asked, and answered. The hearing revisited two unsolved cases - Peter Letcher and Dianne Pennacchio -  with questions raised over whether a missing brief of evidence could contain a link to Milat.
And the head of the state’s Homicide Squad concedes, with 400 boxes of archived evidence, there could be more answers buried in the files.