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How the Palme Investigation was Manipulated. Professor Pär-Anders Granhag one of the interviewed


How did Christer Pettersson become the main suspect in the hunt for Olof Palme’s killer? The Swedish TV programme for investigative journalism, Mission Investigate, has spoken to three people who had central positions in the Palme investigation claiming that there was witness manipulation. For instance, one of the most important witnesses was heard more than 40 times – and changed their story completely over time.
Pär-Anders Granhag, professor in forensic psychology at the Department of Psychology, is one of the interviewed experts.