> Epstein comes off as an unhinged individual. With a mansion full of sex art, a normal reaction would be “we should have known in retrospect”, not a sweetheart plea deal.
That Epstein had politically powerful clients and friends is not in serious dispute (which were clients and which were merely friends unconnected to his child rape business is somewhat less clear), and explains the sweetheart plea deal without resort to some behind-Epstein mastermind.
It's not impossible, but there is nothing that is explained more easily by such a mastermind than by the Epstein being the master of his own sex trade operation which garnered him influence (simply heading that operation means he has powerful blackmail material on powerful people.)