Jördis Völcker was a German physician and KPD activist. Völcker was well-known in Kreuzberg for providing medical care to those too poor to afford it, and she first met the policeman Gereon Rath during the Blutmai massacre of 1 May 1929, when Rath attempted to obtain her help with healing two innocent women who had been shot by the Berlin Police. Both women died, leaving Völcker with a disliking for Rath and his partner Bruno Wolter. Völcker later led communist protests outside the police headquarters, calling them murderers. She was imprisoned after rioting at Karl Zörgiebel's trial, and she was infuriated when a fellow prisoner at the women's prison, Greta Overbeck, testified that the KPD was responsible for August Benda's murder, even though she had previously testified that the Nazis were responsible. Völcker and her fellow communist prisoners attempted to force Overbeck to reveal why she had changed her testimony, but Overbeck refused, even as the communists threatened to drown her in a bucket. Völcker later grew sympathetic to Overbeck after she was sentenced to death, embracing her and providing moral support until her sentence was carried out.