and Franz Ferdinand's convoy could carry on. The other assassins failed to act as the cars drove past them quickly. About an hour later, when Franz Ferdinand was returning from a visit at the Sarajevo Hospital, the convoy took a wrong turn into a street where Gavrilo Princip by coincidence stood. With a pistol, Princip shot and killed Franz Ferdinand and his wife Sophie. The reaction among the Austrian people was mild, almost indifferent. As historian Z. A. B. Zeman later wrote, "the event almost failed to make any impression whatsoever. On Sunday and Monday [June 28 and 29], the crowds in Vienna listened to music and drank wine, as if nothing had happened." Escalation of violence in Bosnia The assassination excessively intensified the existing traditional religion-based ethnic hostilities in Bosnia. However, in Sarajevo itself, Austrian authorities encouraged violence against the Serb residents, which resulted in the Anti-Serb riots of Sarajevo, in which Catholic Croats and Bosnian Muslims killed two and damaged numerous Serb-owned buildings. Writer Ivo Andrić referred to the violence as the "Sarajevo frenzy of hate." Violent actions against ethnic Serbs were organized not only in Sarajevo but also in many other larger Austro-Hungarian cities in modern-day Croatia and Bosnia and Herzegovina. Austro-Hungarian authorities in Bosnia and Herzegovina imprisoned and extradited approximately 5,500 prominent Serbs, 700 to 2,200 of whom died in prison. 460 Serbs were sentenced to death and a predominantly Muslim special militia known as the Schutzkorps was established and carried out the persecution of Serbs. Decision for war While the empire's military spending had not even doubled since the 1878 Congress of Berlin, Germany's spending had risen five-fold, and the British, Russian, and French expenditures threefold. The empire had lost ethnic Italian areas to Piedmont because of nationalist movements that had swept through Italy, and many Austro-Hungarians perceived as imminent the threat of losing to Serbia the southern territories inhabited by Slavs. Serbia had recently gained considerable territory in the Second Balkan War of 1913, causing much distress in government circles in Vienna and Budapest. Former ambassador and foreign minister Count Alois Aehrenthal had assumed that any future war would be in the Balkan region. Hungarian prime minister and political scientist István Tisza opposed the expansion of the monarchy in the Balkans (see Bosnian crisis in 1908) because "the Dual Monarchy already had too many Slavs", which would further threaten the integrity of the Dual