We talk to a man who has endured untold setbacks and even tried to take his own life, yet David Tovey has come through it all to become an independent artist, campaigner and founder of One Festival of Homeless Arts. We hear how a chance meeting with a man on a bench changed the course of David’s life, and how he went on to exhibit his work in the Tate Modern and on the covers of The Pavement Magazine and The Big Issue.