Mel and Steve Jones talk to Anna Foster about the murder of their 11-year-old son, Rhys, which shocked the UK when he was shot dead after being caught in the crosshairs of a gang fight in Loverpool in 2007. They talk about how they fear that another child could die in the recent upsurge of gang warfare in Britain’s cities – and how they’ve coped with Rhys’s death and the rituals they have when they visit his grave.