Sadie Hartley was a hardworking & successful businesswoman who began dating a man named Ian Johnston. Little did Sadie know that simply by being with Ian, that would cause a ripple effect that would lead to her murder. Savannah explores the tragic backstory of one of Sadie's murderers Sarah Williams, Sarah's torrid affair with Ian, and how Sarah and her accomplice Katrina Walsh planned Sadie's murder for nearly 2 years before brutally attacking and killing her in her own home. Sarah and Katrina are currently serving lengthy sentences in prison, while Ian has been cleared of any involvement, despite several people, including Sadie's family, suspect he is not as innocent as he seems. Love Killer Instincts but hate the ads? Subscribe to the ad-free version here!: https://killerinstinct.supercast.tech/ Get 10% Off by visiting BetterHelp.com/instinct! Find out how Upstart can lower your monthly payments today when you go to UPSTART.com/KILLER Go to HARPERWILDE.com/killer today so you can get 20% off your first purchase! Stop paying full-price for streaming services and only getting access to a fraction of their content. Go to EXPRESSVPN.com/killer to get three extra months free! If you have any thoughts on this case or any other case, or just want to get in touch with Savannah about the show, email her at [email protected]. Follow Savannah on IG: @savannahbrymer Follow Savannah on Twitter: @savannahbrymer Learn more about your ad choices. Visit podcastchoices.com/adchoices