May 11th, 2012, 03.46am, Derby emergency services receive a call from Mick & Mairead Philpott - a fire has broken out at their home and six of their children are trapped inside. When firefighters arrive at the scene, tragically they are too late.

Mick Philpott was a tabloid villain, infamous for claiming benefits for his 15 children and living in a ménage à trois with his wife Mairead and mistress Lisa Willis. But who carried out the arson attack which ended six of his children’s lives?