All These Years Later
As time went by, and no clues were fond regarding what happened to the prisoners, the case came to a close. Due to the lack of clues regarding their whereabouts, it was widely assumed that the prisoners did not survive their escape.
But over 50 years after the daring escape, the FBI received a letter which brought this infamous case back into the spotlight. The letter they received was written by someone claiming to be John Anglin, and wanted to inform the FBI of their successful escape from Alcatraz over 50 years earlier. The question now is, how can we confirm that this letter was actually written by John Anglin?