The actor and producer is the latest to declare a creative interest in the story of three men convicted of child murders in 1994Johnny Depp looks set to become the latest high-profile film-maker to take a creative interest in the controversial case of convicted child killers the West Memphis Three after optioning a forthcoming memoir by one of their number, Damien Echols.Echols, who is now in his mid-30s, was convicted in 1993 alongside Jessie Misskelley Jr, and Jason Baldwin, of the murder of three eight-year-old boy scouts in West Memphis, Arkansas. Investigating police at the time labelled the killings part of a satanic ritual. He was freed last year after 18 years on death row under a controversial plea bargain ...