On the morning of June 28, six conspirators, with six bombs and four revolvers divided amongst them, lined Sarajevo's Apel Quai. Some of the conspirators had also been given doses of cyanide with which to commit suicide so as not to reveal secrets should they be captured. A seventh conspirator, Danilo Ilić, was in what could be described as an organizational role and unarmed. They awaited Franz Ferdinand's motorcade.
At approximately 10:00AM, Franz Ferdinand, his wife and their party left the Philipovic army camp, where he had undertaken a brief review of the troops. The motorcade consisted of seven cars:
In the first car: the chief detective of Sarajevo and three local police officers. In the second car: Sarajevo's Mayor, Fehim Efendi Curcic; Sarajevo's Commissioner of Police, Dr. Edmund Gerde. In the third car: Franz Ferdinand; his wife Sophie; Bosnia's Governor Oskar Potiorek; Franz Ferdinand's bodyguard Lieutenant Colonel Count Franz von Harrach. In the fourth car: the head of Franz Ferdinand's military chancery, Baron Carl von Rumerskirch; Sophie's lady-in-waiting Countess Wilma Lanyus von Wellenberg; Potiorek's chief adjutant, Lieutenant Colonel Erich Edler von Merizzi; Lieutenant Colonel Count Alexander Boos-Waldeck. In the fifth car: Adolf Egger, Director of the Fiat Factory in Vienna; Major Paul H�ger; Colonel Karl Bardolff; Dr. Ferdinand Fischer. In the sixth car: Baron Andreas von Morsey; Captain Pilz; other members of Franz Ferdinand's staff and Bosnian officials. In the seventh car: Major Erich Ritter von H�ttenbrenner; Count Josef zu Erbach-F�rstenau; Lieutenant Robert Grein. At 10:15 the motorcade passed the first assassin, Mehmed Mehmedba�ić. Danilo Ilić had placed him in front of the garden of the Mostar Cafe and armed him with a bomb. Mehmedba�ić failed to act. Ilić placed Vaso Čubrilović next to Mehmedba�ić arming him with a revolver and a bomb. He too failed to act. Further along the route, Ilić placed Nedeljko Čabrinović on the opposite side of the street near the Miljacka River arming him with a bomb. As Franz Ferdinand's car approached, Čabrinović threw his bomb striking its folded back roof. The bomb bounced off and into the street. Its timed detonator caused it to explode under the next car, putting that car out of action and wounding a total of 20 people according to Reuters.. Čabrinović swallowed his cyanide pill and jumped into the Miljacka. The procession sped away towards the Town Hall, and the scene turned to chaos. Police dragged Čabrinović out of the river, and he was severely beaten by the crowd before being taken into custody. His cyanide pill was either old or of too weak a dosage and had not worked. The river was also only four inches deep and failed to drown him. Cvjetko Popović, Gavrilo Princip and Trifun Grabe� failed or were unable to act as the motorcade sped away. in the end Gavrilo Princip shot when the car carrying Archduke Franzferdinand and his wife pulled up in front of him at a cafe.this happened at 10:45. the cafe was situated in Franz Josef Street and here is where the Archduke and his wife were killed.