A twisted paedophile who targeted dozens of children and carried out the "sickening abuse" of a disabled man has been denied his freedom. Judges have denied an appeal from David John Andrews, 56, a " heinous predator " found to have preyed on 47 victims - 46 of whom were children - to reduce a 27-year sentence he was handed last year. Andrews, from Northern Ireland, received the sentence after pleading guilty to 130 charges of sexual abuse. A court heard he posed as a 13-year-old to catfish