2 June (J2M). Former SPK members The SPK, the leftist, 'therapy-through-violence' group, dissolved in 1971, and those members who had turned militant forged links and joined with the Baader-Meinhof Gang. Brigitte Mohnhaupt, Klaus Jünschke Carmen Roll, and Gerhard Müller had already joined as part of the first generation of the RAF but originally started in SPK. Siegfried Hausner (24 January 1952 – 5 May 1975) was a leading member of the SPK especially involved with explosives. He took part in a bombing of the Axel Springer Verlag in 1971 and was the leader of the West German embassy siege in Stockholm in 1975, when he was fatally injured after TNT wiring the embassy was accidentally detonated. Brigitte Mohnhaupt (born 24 June 1949) became a leader amongst the second generation RAF and was involved in some of their most serious crimes (such as the murder of Jürgen Ponto) and was a key perpetrator during the German Autumn. Sieglinde Hofmann (born 14 March 1945) became an important figure of the second generation RAF and was personally involved in the kidnap and murder of Hanns-Martin Schleyer, his driver and three accompanying policemen. Klaus Jünschke (born September 1947) was a student member of the SPK, who managed to escape arrest when police came after certain members of the SPK in 1971. He joined the RAF with his militant girlfriend Elisabeth von Dyck and was involved in at least one bank robbery (in December 1971 in Kaiserslautern – alongside Ingeborg Barz and Wolfgang Grundmann). Hanna-Elise Krabbe (born October 1945) was born in Bad Bentheim. She was a member of the IZRU (the group which succeeded the SPK) and was the elder sister of Friederike Krabbe, another member. Hanna-Elise Krabbe took part in the West German embassy siege in Stockholm. She was the only female member involved in the siege. Her role during the siege was to guard the hostages. She was arrested when the siege failed and was sentenced on 20 July 1977, to twice life imprisonment. She was released from prison in 1996, after serving 21 years. Friederike Krabbe (born 31 May 1950) was born in Bad Bentheim. She is the younger sister of Hanna-Elise Krabbe, another member. Friederike Krabbe studied psychology, pedagogy and sociology in Berlin from 1970 to 1973 and then went on to study medicine for a while in Heidelberg. She was involved with the SPK and after its dissolution, the