On a personal level Emperor Franz Joseph was far from devastated by the death of his nephew; he didn’t think he was conservative enough and he disapproved of his marriage to the non-royal Sophie Chotek
Austrians, however, were appalled by the assassination
Chief of Staff Conrad von Hotzendorf led a group of anti-Serbs in the Austrian military in advocating the immediate invasion of Serbia
They had no proof that the Serbian government was involved but they pointed out that the Serbs had allowed Princip and his associates to cross into Bosnia
Austrian Chancellor knew that Russia wouldn’t stand by if their client state, Serbia, was attacked so Austria-Hungary sought a firmer guarantee of German support