Mysterious letter reopens case over whether Alcatraz escapees survived the infamous 1962 jailbreak

It was supposed to be the jail from which no inmate could escape - or if they were foolhardy enough to try, would surely perish in the attempt.

Mystery letter from 'one of three prisoners who escaped Alcatraz in 1962' in raft made from raincoats sees FBI re-open case

Alcatraz Escape — FBI

Alcatraz inmates survived infamous 1962 escape, letter suggests

What is the history of Alcatraz prison? Has anyone ever escaped from Alcatraz prison before or after its closure, and what happened to the escapees afterwards? - Quora

Escape from Alcatraz: Letter claims three inmates survived 1962 prison break - The Washington Post

Mystery of Alcatraz inmates' escape may FINALLY be solved after 70 years - Mirror Online

3 Alcatraz inmates survived 1962 escape, swam to land, letter suggests

Alcatraz escape of June 1962, Planning, Escapees, & Facts

Mysterious letter reopens case over whether Alcatraz escapees survived the infamous 1962 jailbreak