How 8 Grandpas Pulled Off a $21 Million Jewel Heist

Believe it or not, but one of the biggest bank heists in history was done with no violence at all! It was so well prepared and executed that not one of the culprits got caught in the act? That might seem like a stretch, but the truly crazy thing is that this heist was prepared by 8 older men, some already in retirement! It all happened in 2015 in England when an older man walks into a bank disguised as a maintenance worker. No one could even suspect this older man to be a burglar in disguise...