Serial killer Ivan Milat's eighth victim may have been 18-year-old Peter Letcher, who was stabbed and shot in the Jenolan State Forest west of Sydney. The investigation into unsolved murders was reopened after Milat's conviction in 1996 for the murders of seven backpackers. Ivan Milat, also known as The Backpacker Killer, is Australia’s most notorious serial killer, jailed for life in 1996 for the murder of seven young Australian and international backpackers and the disposal of their bodies, 90 minutes south of Sydney. Now, after Milat's death in maximum security prison, Australia's foremost criminal investigative team set out to prove Milat had many more victims, many more burial grounds, and there are dozens of families who have lost loved ones and need closure.