Now that Congress has passed a law – not a flimsy resolution, but a law – mandating that the Trump administration release all its files on Jeffrey Epstein, here’s what we know, and what we still need to know. The basic elements of Epstein’s crimes were established back in 2006 by the Palm Beach Police, who began investigating the previous year after a woman reported that he had paid her 14-year-old stepdaughter for a massage. Over the next 13 months, the police gathered sworn statements from dozens of witnesses, including five underage girls who said they’d been paid $200 to...