Is Massive Attack's Robert Del Naja the real Banksy? Craig Williams says yes

It's one of the art world's biggest mysteries: who is Banksy? The British street artist's politically charged images have become hugely popular over the last 20 years, and yet, no one knows his true identity.

Banksy first gained fame for his stencilled spray-painted works that appeared overnight in public spaces around the U.K. and then on walls all around the world, including Israel's separation wall and walls in post-Katrina New Orleans. His work has become incredibly valuable, with galleries selling his paintings and sculptures for more than half a million dollars.

With a new Banksy exhibit opening today in Toronto, we thought it was the perfect time to revisit the mystery of the elusive street artist's true identity. Journalist Craig Williams came up with one of the leading theories when he investigated this mystery two years ago: he believes that musician Robert Del Naja of the band Massive Attack might be behind it all. Williams joins Tom Power live from Glasgow, Scotland to explain how he figured it out. 

— Produced by Cora Nijhawan