Hendrik Sebald was a German man who served as a fixer for Berlin political police chief Gottfried Wendt. In September 1929, he located Greta Overbeck's child in an orphanage and took custody in Wendt's name. The Nazi Party used Overbeck's child as a hostage to force her to change her statement and incriminate the KPD, rather than the Sturmabteilung (SA), in August Benda's murder.