Paedophile killer Sidney Cooke should be quizzed about a string of unsolved child murders before he takes his secrets to the grave, a former detective said.
Cooke, 96, is making a new bid for freedom having been denied release 10 times due to the danger he poses.
Described as a real-life “Hannibal Lecter”, he remains in a maximum security jail despite having completed his minimum term 19 years ago.
