Serial killer Ivan Milat hinted at having an accomplice to commit his crimes, longtime prison inmate Russell Manser revealed in a radio interview shortly before his death.
There have been thousands of serial killers over the years across the continents - here is a list of the countries that have produced the most, according to World Atlas
The Murderous Conclusion (Season 1 Episode 4 of 4): The story of Australia's most prolific killer. Ivan Milat: Backpacker Murderer airs on Crime + Investigation HD at 10:00 PM, Saturday 23 December. The story of Australia's most prolific killer
Sewing the Seeds of a Serial Killer (Season 1 Episode 3 of 4): The investigators ask how many more victims suffered at Milat's hands. Ivan Milat: Backpacker Murderer airs on Crime + Investigation HD at 10:00 PM, Saturday 16 December.
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