Bamba Mourned . Leopoldiville , Congo : Mourners and family of Emmanual Bamba , one of the four former Congolese Cabinet Ministers publicly hanged on June 2 on charge of treason , encamp before Bamba ' s residence here , the day of the hanging . Since early morning thousands had flocked to the main square in Leopoldville , encouraged by the public holiday elected by the authorities . Bamba ( 46 ) former Finance Minister . He was the second man to be hanged of the four . The sister of Bamba , Mrs Nsiona , mother of four children was said to have tried to commit suicide on June 2 shortly after her brother ' s death . 6 June 1966