John anglin and clarence anglin brazil

Three men spent six months digging holes in their crumbling cell wall at Alcatraz, armed only with spoons and forks.

Robbers John Anglin, his brother Clarence and Frank Morris would escape the notorious jail in California.

Whether they made it safely to freedom or perished in the freezing, shark-infested waters of San Francisco Bay has puzzled investigators since the night of June 11,

The FBI closed the case in

But family claim to have had contact from the Anglins down the years.

Now artist’s impressions of how the men might look today – in their 90s if alive – have been released.

And marking the 60th anniversary of the incident, the mystery could finally be solved once and for all as DNA testing will reveal if the Anglins went on to father children in South America.

A TV documentary this week is set to reveal the truth about the trio, who snuck out of the jail in the dead of night.

They