What's the Potential
The results came back "inconclusive," according to the FBI's forensic analysis team. Even though thousands of hobbyist investigators (some of which are linguistics experts) were able to find distinct similarities between John Anglin's handwriting on the letter compared to things he wrote while in prison. These findings, despite being more professional than what the US government was willing to disclose, got tossed out...
What Does the Letter Say?
In his letter, John Anglin explains that he and his brother, as well as Frank Lee Morris, all made it off the island safely. He said that they all lived into old age, but his brother Clarence died in 2008, and Morris died in 2005. Anglin tried to use the letter as an incentive for news agencies to get what he wanted...