Alcatraz’s final escape attempt by Frank Morris and brothers Clarance and John Anglin was turned into a book called Escape From Alcatraz, and a film by the same name. The three used homemade tools to drill holes in their cell walls in order to reach the vents and swim free using homemade life jackets. The men were never seen again and presumed dead. However, many believe they made it to shore and lived the rest of their lives as free men.