Alcatraz may have been tipped as the most secure prison in the world, but it was still no match for three men, who managed to escape and were never seen again.
TikTok user @bobbymoore44 shared details of the daring escape, which showed the scale of planning that went into the whole thing.
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Although having a deserved, reputation as the most secure prison in the world, it didn't stop wannabe escapees from giving it a shot.
In fact, over the years 36 men fancied their chances - however, all but three of them were either captured or died during their attempt, according to the FBI.
Frank Morris, John Anglin and Clarence Anglin were banged up in Alcatraz back in the 60s, but on the morning of 12 June 1962, guards carrying out their early morning checks noticed the men's beds contained dummies, made of plaster covered in flesh coloured paint and topped off with real hair.
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Realising the men were missing, the alarm was raised and a manhunt began and authorities began to piece together how the men had managed to pull off the escape and it was pretty intense.
Despite not escaping until the night of 11 June, the plan was actually hatched back in December of the previous year when one of the men found some old saw blades.
They used these blades with the motor of a broken vacuum cleaner to fashion a homemade drill which they then used to drill holes into the wall and dug through to the other side, which was an unguarded corridor.
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The brazen crooks then set up a makeshift workshop on the roof of their cell block, which they could access via the corridor.
Here they built all sorts of tool and items they'd need for their escape, including a lifejacket and a raft created from more than 50 raincoats stitched together.
I mean, you have to admit this is some serious dedication.
Once they created everything they thought they'd need for their great escape, the men climbed their way through a network of pipes before escaping through a ventilator and getting onto the prison roof.
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They were then able to clamber down from the roof, climb over the fence and set off from the shore of the island on their handmade raft, which they inflated with a repurposed musical instrument.
What happened next we'll probably never know - with even the FBI admitting they were flummoxed, although the agency believes the men probably died.
But with their bodies never being found, there's a chance the trio did survive and could still be alive today.
Featured Image Credit: PATopics: Interesting, crime, Prison