Jon Venables- why the secrecy over his offence

I'm just wondering why Jack man of Straw, has decided that it isn't ini the public interest to state what child killer Jon Venables' offence was to return him to prison. I think it was more than a fight at work. It was reported that the scumbag had committed a sexual assault. I suppose Venables will be protected by his new ID he was given upon release from prison last time. I'm sorry, but he and Robert Thompson abducted and tourtured then two year old James Bulger, and left him for dead on a railway line, (poor James' tortured body was sliced in half by a train)so I believe that these two should never have been allowed to go free. When will prison be about punishment of the most serious criminals, no Playstations, tv etc, both Venables & Thompson should suffer hard labour for the rest of their pathetic lives. Oh yes as for Venables' new ID, I think it's only right that his neighbours, work colleagues have a right to know they are working with living next to a convicted child murderer/ sex offender. Little James Bulger's life ended to soon in the most horriffic of circumstances, so his killers should have to pay the price for that.