Gripped by A Confession? ITV News has delved into its archives for the real story behind the drama - as told by our cameras. Watch Detective Superintendent Steve Fulcher apprehend the real Christopher Halliwell, and listen to the emotional stories from the families of his victims, Sian O'Callaghan and Becky Godden. We also speak to Martin Freeman (Det Supt Fulcher) and Imelda Staunton (Karen Edwards) about their roles in the drama, as well as Executive Producer and Writer Jeff Pope. • Subscribe to ITV News on YouTube: http://bit.ly/2lOHmNj • Get breaking news and more stories at http://www.itv.com/westcountry Follow ITV News West Country on Facebook: https://www.facebook.com/itvwestcountry/ Follow ITV News West Country on Twitter: https://twitter.com/itvwestcountry Follow ITV News West Country on Instagram: https://www.instagram.com/itvwestcountry/