The Killing of Olof Palme

The Swedish Prime Minister was shot dead on a Stockholm street on February 28th 1986. But the investigation into his killing was never satisfactorily completed. Tim Mansel spoke to public prosecutor Solveig Riberdahl, and police investigator Hans Olvebro, about the case in 2012. Photo: Portrait of Olof Palme in Stockholm in the 1980s. (Credit:AFP/Getty Images)