The Serbians were outraged to learn about this. June 28 was the date on which Serbia had been conquered by the Ottoman Empire in 1389.
Princip joined Unity or Death, a terrorist group commonly known as the Black Hand. Organized by Bosnian Serbs, its goal was to organize all South Slav peoples into a single nation. On June 28, Princip would be waiting on the streets of Sarajevo.
The Hapsburg royal family snubbed Sophie, because of her lower social rank. Still, Francis Ferdinand sought ways to make sure she was acknowledged. When his duties took him to Sarajevo on their anniversary, he decided to bring his wife along.
Leaving the town hall, the archduke asked to visit the officer who had been wounded in the bombing. But no one told the chauffeur to drive to the hospital. Instead, he followed the old route. When told to change directions, he stopped to put the car in reverse-right at the spot where Princip stood. Seizing his opportunity, he sprang toward the car and fired twice into the back seat.
Horrified guards hurled themselves upon the killer. It was too late - the royal couple had been struck. According to one witness, the archduke gasped, “Sophie, Sophie, don’t die. Stay alive for the children!” Within minutes, both were dead.
At his trial, Princip stood by his deed. His only regret, he said, was killing a woman. Because he was under 20 years of age, he was not executed. He died in prison of tuberculosis in 1918. For Europe, the punishment was more severe. The Archduke and his wife were the first victims of a war that killed millions.