– The cast of the Danish crime drama The Killing got a visit from a pistol-packing duchess yesterday. Camilla, duchess of Cornwall, is a big fan of the show, and arranged to visit the set with Denmark's Princess Mary as part of her Scandinavian tour, People reports. After picking up a prop pistol and pretending to shoot Mary, the duchess told the crew she was an "addict" of the series. The US version of the program is a hit on AMC. "It was me all along," Camilla quipped as she waved the pistol. "I think it is really surreal, but it's lovely that she wanted to come here," says Sofie Grabol, who plays Detective Sarah Lund. "I told her last night to wear flat shoes. This is not really an inviting place for a royal visit."