On the night of June 11, 1962, three inmates—Frank Morris and brothers John and Clarence Anglin—successfully escaped from the notorious Alcatraz Federal Penitentiary, located on an island in San Francisco Bay. Known for its high security and harsh conditions, Alcatraz was considered escape-proof, surrounded by freezing waters and strong currents. The trio meticulously planned their escape for months, using stolen spoons to enlarge ventilation ducts and crafting fake heads from soap and human hair to avoid detection during nightly bed checks. They constructed a makeshift raft and life jackets from over 50 stolen raincoats. After slipping through the prison's openings, they vanished into the darkness of the bay. The following morning, guards discovered dummy heads in their beds, prompting a massive search by the FBI, Coast Guard, and local authorities. While some belongings were recovered, the men were never found, and officials concluded they likely drowned. However, the case remained open, and in 2013, a letter allegedly from John Anglin claimed all three men survived, although the FBI found no conclusive proof of its authenticity. The Alcatraz escape continues to be one of America's most enduring true crime mysteries.