Archduke Franz Ferdinand and his Wife Sophie visited the capital of Sarajevo. He visited Sarajevo to inspect the imperial armed forces in Bosnia and Herzegovina. It was annexed by Austria and Hungary.
As the Carriage passed the CumuJuru Bridge the next assassin named Cabriolvic threw his bomb not accurately and he forgot that it had a 10 second delay. So he drank he is vial of poison and jumped into the river. The bomb hit the carriage behind him injuring several people.
The Annexation triggered Serbian Nationalists, who think that the territories should be apart of Serbia. A group of young nationalists planned a plot to kill the Archduke during his visit to Sarajevo. Some of the members that were majorly included were Gavirilo Princip, Nedjelko Cabrinovic and Trifko Grabez.
The Black Hand Group
The first assassin of the Black Hand Group at 10:15 named Mehmadbasic lost his nerve and he didn't do anything.
The Archduke was then driven to the Town hall to meet the victims of the bomb attack. A new route was created so no more attempts of assassination would happen.
All the assassins thought that the Archduke was dead. But Gravillo Princep who went to a cafe across the street. At 10:45 when he was standing outside the cafe. The Archdukes carriage appeared besides him. With all his luck he drew his gun out and shoot the Archduke and his wife. That sparked WW1