None of these theories has been confirmed.

Nicholas Barclay was added to the National Missing and Unidentified Persons System (NamUs) database, and his case has been reviewed at various points over the decades.

As of the writing of this article, he remains an unsolved missing persons case.

He would be in his mid-forties now.

He is, by every available measure, gone.

The FBI Counterfeiting Experts And The Ears

The technical mechanism of Bourdin’s exposure deserves more detailed examination than it typically receives in popular accounts of the case, because it illustrates both the sophistication of Bourdin’s deception and the specific vulnerability that brought it down.