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Updated: October 21, 2017 @ 8:53 pm
This is a view of one of the three cell tiers with individual cells at the main block of the federal prison for dangerous criminals at Alcatraz island, San Francisco, Calif., on March 15, 1956. (AP Photo)
The last prisoner left Alcatraz March 21, 1963, 50 years ago. Here is a look back at the fed…