FBI agents found an expired passport in Jeffrey Epstein's safe. It reportedly listed his residence as Saudi Arabia and was not under his name.

The Jeffrey Epstein case just keeps getting stranger.

During Epstein's bail hearing on Monday, federal prosecutors disclosed the contents of Epstein's safe after the FBI raided his Manhattan residences last week. Sure, they found "piles of cash." And some diamonds, too. That's to be expected.

But Alex Rossmiller, one of the prosecutors, reportedly revealed a more startling discovery.

One can only speculate about why Epstein has the passport and if he ever used it, but the enigma grows. No one can pinpoint how Epstein accrued his wealth, there are reports of a steel safe in a secretive room on his private island, and there are longstanding rumors, which may have been substantiated, that he has compiled blackmail to use against his powerful associates. Add the passport to the list.

Of course, these mysteries should not overshadow the actual reason Epstein is in the news — he has been charged with sex trafficking minors for years and accused of sexual abuse. But perhaps as investigators been to unravel this sprawling tale, some of the weirder components will begin to shed light on Epstein's alleged criminal history.