The Alcatraz escape of June 1962 was successful in the sense that the inmates—Frank Morris and brothers Clarence and John Anglin—broke out of the prison. However, it is unknown if the three men reached the mainland. While there were alleged sightings of the escapees, none of the reports were considered credible. The FBI closed its investigation in 1979, concluding that Morris and the Anglin brothers had drowned. Although no bodies were found in the bay, they could easily have been swept out to sea by the current.
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