When 11-year-old Rhys Jones was shot dead on his way home from weekly football practice in 2007, his family were left shattered and police were left with a case that seemed impenetrable. But when certain names were mentioned again and again, the police planted secret bugs in the homes of these gang members. Here, Susanna Reid gains unprecedented access to the subsequent recordings, where those responsible admit their part and the lengths they would go to cover up the crime. She also talks to Rhys's parents, Mel and Steve, about the impact of this appalling crime