It has been a source of wonder how celebrity paedophile, flesh presser, sex trafficker and financier Jeffrey Epstein managed to obtain his lucre. Was he more than a deft confidence trickster, a liar with astonishing talents to secure the trust of the powerful and the foolish? Or did he simply attract animals of similar proclivities? Whatever the case, Leon Black, a billionaire investor and former Apollo Global Management chief executive, is one who offers some clues. Peering into the Black heart reveals a picture distinctly unsavoury.