Franz Ferdinand was extrememly conservative. He had a strang hatred for Hungarians, Slavs, and Serbs.
I hate all Hungarians, Slavs, and Serbs
6 Bosnian Serb teens went to Belgrade where they were given 4 pistols and 6 bombs by the Black Hand.
On June 28, 1914, Ferdinand and his wife Sophia were driving through Sarajevo while the 6 Bosnian Serbs were in the crowd. Whilst driving over a bridge one of the teens threw a bomb at the car which happened to hit the car behind full of pedestrians.
After the bomb injured the people in the car behind them, Ferdinand felt responsible and wanted to make sure they were okay. So, he made the driver change the route to go past the hospital.
After the bombing, the other Bosnian Serbs assumed Ferdinand was dead and decided to leave. All except for Garvillo Princip. He was waiting at the corner of a street called Apple Quay where Ferdinand just happened to park right next to because the route was not fully explained to the driver.
Princip shot Ferdinand and his wife right as they parked. The assination caused the blame to be thrown around at different countries starting many conflicts, specifically World War 1.