On July 6, Insider revealed the discovery of a 1997 address book that belonged to Jeffrey Epstein, the notorious billionaire and felon who died in prison in 2019. The book predates Epstein's original "little black book" by several years, and connects its former owner to dozens of prominent individuals.

The Insider News and Documentary team captured our efforts to verify the book's authenticity. We filmed interviews with the woman who found the book on a New York City sidewalk, the communist Vermonter who later purchased it on eBay, and the forensic examiner who authenticated it for Insider.