Nedeljko Čabrinović not enough to pay for rent and food, let alone books, which, for Čabrinović, were "the only sign of life." In the meantime, he met Gavrilo Princip, and joined the Black Hand in 1912. Two years later, Dragutin Dimitrijević leader of the Black Hand, ordered Čabrinović, Gavrilo Princip and five other conspirators to assassinate Austro-Hungarian Archduke Franz Ferdinand, giving them each a gun and two bombs. On Sunday, 28 June 1914, Archduke Franz Ferdinand of Austria and his wife Sophie, Duchess of Hohenberg were assassinated in Sarajevo by Gavrilo Princip during a visit that had been announced two months prior.
Muhamed Mehmedbašić the way to Sarajevo, gendarmes searched the train; fearing they were on to him, he threw the knife out the window. Potiorek was planned to be assassinated at the end of March 1914, when the new mufti Čaušević was to be enthroned in Sarajevo. However, upon hearing that Archduke Franz Ferdinand of Austria would come to Sarajevo on Vidovdan, the Black Hand changed their minds. The Archduke's scheduled visit on Vidovdan (28 June), a Serbian national holiday, was perceived as an insult. Ilić summoned Mehmedbašić and informed him on 26 March that the plan now was to murder Archduke Franz