Frank Morris and two other inmates came up with a master plan on how they would escape from prison using a ventilation shaft that was housed on an unguarded utility corridor that led to the roof of the prison. They used stolen drill bits and a vacuum cleaner motor to make a drill that would successfully help them to dig their way out of prison. After two years of planning, Frank Morris and his friends broke out of prison into the waters of surrounding Alcatraz. It is widely believed that they drowned in these waters, although the body of Frank Morris and one of his friends were never found.
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