Gang leader who stole priceless artworks jailed in Romania A Romanian court has sentenced the ringleader of a gang that stole famous paintings from a Dutch museum to more than six years and eight months in prison. Radu Dogaru pleaded guilty earlier this year to stealing the artworks including paintings by Picasso, Matisse and Monet, from Rotterdam's Kunsthal museum. It was one of the world's biggest art heists and the paintings have never been found. His mother, who is accused of burning the art, goes on trial next week along with three other defendants.