Carol Clay and Russell Hill were having a secret affair when they went missing on a camping trip in remote Victoria bush. Did they run off together? Did they get lost on a bush walk? Were they dead or alive? No one knew. From the button man to a high profile pilot, Greg Haddrick takes Gary Jubelin through every step of the investigation to catch a killer.   Discover Greg Haddrick's book, In the Dead of Night.   Can’t get enough of I Catch Killers? Stay up to date on all the latest crime news at The Daily Telegraph. Get episodes of I Catch Killers a week early and ad-free, as well as bonus content, by subscribing to Crime X+ today. Like the show? Get more at icatchkillers.com.au Advertising enquiries: newspodcastssold@news.com.au  Questions for Gary: icatchkillers@news.com.au  Get in touch with the show by joining our Facebook group, and visiting us on Instagram or Tiktok.See omnystudio.com/listener for privacy information.