Did These Men Survive A Daring Escape From Alcatraz? | Mysteries Of The Missing

Three men attempted and escape from Alcatraz in 1962, but nobody knows whether they survived and fled, or never made it out of the shark filled waters surrounding the prison. Subscribe to Discovery UK for more great clips: http://www.youtube.com/subscription_center?add_user=DiscoveryTV Follow Discovery UK on Twitter: http://www.twitter.com/DiscoveryUK