It's a hundred years to the day since Archduke Franz Ferdinand was shot dead in the Bosnian capital Sarajevo, an act that leaves people debating whether the assassin was a hero or a criminal. It was an act of defiance that brought Austria-Hungary into conflict with Serbia, sparking World War One in 1914. Al Jazeera's Jonah Hull reportes from Sarajevo. Subscribe to our channel http://bit.ly/AJSubscribe Follow us on Twitter https://twitter.com/AJEnglish Find us on Facebook https://www.facebook.com/aljazeera Check our website http://www.aljazeera.com/