The astonishing case of a teenage killer helps lift the lid on how bot campaigns work – and offers the team a new path forward in the investigation. Download the Tortoise app - for a listening experience curated by our journalists Subscribe to Tortoise+ on Apple Podcasts for early access and ad-free content Become a member and get access to all of Tortoise's premium audio offerings and more If you want to get in touch with us directly about a story, or tell us more about the stories you want to hear about contact [email protected] Reporter and host: Alexi Mostrous Producer and reporter: Xavier Greenwood Editor: David Taylor Narrative editor: Gary Marshall Additional reporting: Katie Riley  Sound design: Karla Patella  Artwork: Jon Hill & Oscar Ingham Hosted on Acast. See acast.com/privacy for more information.