I highly recommend it to those who are interested in the period.
The group of seven ranged in age from 19 to 27. Only one had a police record which was only for striking a teacher. They were all members of the secret Serbian nationalist movement Mlada Bosna ("Young Bosnia"). All had tuberculosis, a death sentence in 1914.
Nedjelko Cabrinovic
Vasco Cubrilovic
Trifko Grabez
Danilo Ilic
Mohammed Mehmed Basic
Cvijetko Popovic
Gavrilo Princip
Their training and arms came from Belgrade's "Union or Death" terrorist league. This faction of the Serbian "Black Hand" was under the leadership of a "Colonel Apis" (the bee), whose real identity was Colonel Dragutin Dimitrievitch, no less than the head of Serbian military intelligence.
The assassins returned to Sarajevo on Jun-3 with pistols, bombs and cyanide to await the visit of the Archduke.