but Schelm did not surrender. She threw away a jacket she was holding to reveal a handgun and fired at the police, but the police returned fire. Jillian Becker states that Schelm was killed by a burst of gunfire from a submachine gun, but Stefan Aust states that it was a single bullet wound to the head that killed Schelm. Additionally, a closeup photograph of Schelm taken at the scene immediately after her death (probably by a police photographer) clearly shows a single gunshot wound through the eye. Some RAF members called for retribution for Schelm's death. She was buried at a cemetery in Spandau. At her funeral, fifty or so youths laid a red flag on her grave, though policemen later came and removed it. Irmgard Möller (13 May 1947) bombed the Campbell Barracks in Heidelberg on 24 May 1972. She claimed responsibility in the name of the Commando 15 July (the date of Petra Schelm's death) in honour of Schelm. Christa Eckes was arrested on 4 February 1974 when the police raided RAF safehouses simultaneously in Hamburg and Frankfurt together with Helmut Pohl, Ilse Stachowiak, Eberhard Becker, Margrit Schiller, Kay-Werner Allnach and Wolfgang Beer. On 28 September 1977, she was sentenced to seven years in prison. After her release she was arrested again on 2 July 1984 in Frankfurt, after several RAF members accidentally discharged a gun into the apartment below their safe house. The others arrested were Helmut Pohl, Stefan Frey, Ingrid Jakobsmeier, Barbara Ernst and Ernst-Volker Staub. Angela Luther (born 1940) was first involved with the Blues-Scene and West Berlin Tupamaros, but in July 1971, she met with some RAF members, and together with Thomas Weissbecker she expressed interest and started working with the RAF. On 12 May 1972 she participated in the bombing of a police station in Augsburg together with Irmgard Möller, and on 24 May 1972 she was involved in the bombing of the officers club and the Campbell Barracks in Heidelberg. Second generation Red Army Faction (1975–1982) By 1972 a large number of the core members of the Baader-Meinhof Gang had been captured and imprisoned. However, new members swelled the dwindling ranks of the Gang. These revolutionaries mostly had similar backgrounds to the first generation, e.g. they were middle class and frequently students. Most of them joined the Gang after their own groups dissolved e.g. the Socialist Patients' Collective (SPK) and Movement