 Thieme also revealed that in 1973, he was pressured by the military to assassinate Senator Carlos Altamirano, who had been the general secretary of the Chilean Socialist Party since 1971.The Swedish journalist Anders Leopold, in his 2008 book "Det svenska trädet skall fällas", makes the case that PyL leader Roberto Thieme was the assassin in the still-unsolved 1986 murder of Swedish prime minister Olof Palme.According to Leopold, the Swedish prime minister was killed because he had freely given asylum to so many leftist Chileans following the 1973 coup against Salvador Allende.