Escape from Alcatraz: US Marshals hunt criminals who dug their way out of prison in 1962, US News

Some historians believe the three men died while trying to cross San Francisco Bay after their escape but some evidence suggests they made it out alive.

Did the historically famous escapees of Alcatraz jail really make it to Brazil? - Quora

U.S. Marshals still looking for inmates who escaped Alcatraz 60 years ago - National

US marshals release sketches of three men who escaped from Alcatraz in the 1960s and could still be at large

Have you seen these fugitives? Alcatraz escape mystery remains after 60 years

Have you seen these fugitives? Alcatraz escape mystery remains after 60 years

US Marshals still searching for Alcatraz inmates who may have survived escape 60 years ago

US Marshals release new wanted images of the three men who infamously escaped Alcatraz

Ted Bundy, Alcatraz, Dannemora: Brazen U.S. Prison Escapes

Why were the 1962 Alcatraz escapees never caught? - Quora