“The 13 stolen masterpieces valued at around half-a-billion dollars included a Rembrandt and a Vermeer … ‘I’m 100 percent sure that they are in Ireland. Hundred percent sure. No doubt in my mind,’ art investigator Arthur Brand said. He’s described as the Indiana Jones of the art world. It’s an audacious claim to make after nearly three decades. But Brand alleges his leads point to the Irish Republican Army.”