More: Epstein sent an email on April 24, 2009, that said: "where are you? are you ok , I loved the torture video"

The recipient's email address and name were redacted.

But Deputy Attorney General Todd Blanche said the recipient was identified in the file EFTA00666117, which names "Sultan Bin Sulayem" while redacting the email address.

The nature of the "torture video" is not known.

They replied a day later to say: "I am in china I will be in the US 2nd week of may"

Sulayem was a friend of Epstein's, and the DOJ documents show that the pair corresponded about sexual experiences.

The Emirati businessman continued a relationship with disgraced financier Epstein for years after the latter's conviction for soliciting an underage prostitute in 2008.