Alcatraz escape of June 1962

Alcatraz escape of June 1962, jailbreak from the supposedly escape-proof maximum-security federal penitentiary on Alcatraz Island, California, on the night of June 11, 1962. After six months of meticulous preparation, three inmates managed to break out, though it is uncertain if they reached the mainland. The escape is thought by some to have factored into the decision to close Alcatraz prison less than a year later.