Separate Turkish domestic prosecutions resulted in the convictions and sentencing to death of many of the masterminds of the Armenian genocide. As many of the principal architects of the genocide had managed to escape prior to sentencing, the Armenian Revolutionary Federation decided at its 9th General Congress, which convened in Yerevan from September 27 to the end of October 1919, to pursue an assassination campaign against those it perceived to be responsible. A task force, led by Shahan Natalie, working with Grigor Merjanov, was established to assassinate Talaat Pasha, Javanshir Khan, Said Halim Pasha, Behaeddin Shakir Bey, Jemal Azmi, Jemal Pasha, Enver Pasha, and others, including several Armenians.