The escape of three Alcatraz inmates in 1962 have baffled the minds of law enforcement and frightened the public for years.
Alcatraz prison was then known as the world’s most impenetrable island prison, a place for only the most hardened of criminals and place that if one was to escape — would almost end in death.
To this day, Frank Morris, Clarence Anglin and John Anglin remain the only people who have escaped Alcatraz and never been found — a disappearance that is one of the country’s most notorious unsolved mysteries.
The prevailing theory is that Morris and the Anglin brothers drowned after leaving Alcatraz Island and attempting to cross the freezing cold San Francisco Bay.
But in a newly surfaced letter sent to San Francisco police in 2013 and obtained by CBS affiliate KPIX, a man claiming to be one of the escapees said that all three of the prisoners survived the attempt — but that he was the only one still living.
“My name is John Anglin,” the handwritten letter began. “I escape [sic] from Alcatraz in June 1962 with my brother Clarence and Frank Morris. I’m 83 years old and in bad shape. I have cancer. Yes we all made it that night but barely!”
The letter claimed that Morris died in 2008 and that Clarence Anglin died in 2011.
The letter continued: “If you announce on TV that I will be promised to first go to jail for no more than a year and get medical attention, I will write back to let you know exactly where I am. This is no joke.”
That was 7-years-ago.
A U.S. Marshals Service representative told The Washington Post that the agency believes the letter is without merit. According to the agency, the letter was submitted to an FBI lab for forensic handwriting analysis, comparing it to samples from all three escapees, and the results were “inconclusive.”
“At this time, there are no leads stemming from the 2013 anonymous letter,” the Marshals Service said in a statement.
Here is what is known about the jail break heard around the world.
About six months before the escape attempt, four Alcatraz prisoners began plotting their jailbreak, using found and stolen materials (including a broken vacuum cleaner motor) to fashion a makeshift drill.
Slowly, each of the men drilled tiny holes around the air vents in the back of their cells, then punched out a portion of the wall large enough to wiggle through.
For weeks, the FBI stated, the prisoners used the air vents to access an empty corridor they used as a “secret workshop” to build their escape equipment, which attested to the men’s ingenuity: