The re-investigation begins with a close look at the defence files of convicted murderer Bradley John Murdoch, the crime scene, the forensics, and the witnesses. Some of the evidence doesn't add up.

The detailed re-examination of the Falconio murder case continues with a close look at girlfriend Joanne Lees, the sole eyewitness to the night's events, including previously unseen video footage.

Bradley Murdoch was found guilty of killing British backpacker Peter Falconio. But other suspects and crucial CCTV leave the verdict in doubt.

A closer look at crucial DNA evidence raises serious questions about this controversial crime. But are the doubts enough to re-open the case?