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.
Trifko Grabež or a bomb and a small vial of cyanide. They were instructed to commit suicide after Archduke Franz Ferdinand had been killed. It was important to Colonel Dimitrijević that the men did not have the opportunity to confess who had organised the assassination. Grabež, Nedjelko Čabrinović, and Gavrilo Princip, were all suffering from tuberculosis and knew they would not live long and the other four men hated Franz Ferdinand. They were therefore willing to give their life for what they believed was a great cause: Bosnia and Herzegovina achieving independence from Austro-Hungary. Nikola Pašić, the prime minister of Serbia, heard