the hospital, it found itself outside the café where Princip was at; he fired fatal shots at the royal couple and then turned the gun at himself, however, two bystanders stopped him and he was arrested. Čabrinović and Princip gave up the names of their fellow conspirators under torture. Mehmedbašić managed to escape (wearing civilian clothes and a fez) to Montenegro, arriving on 4 July, but Danilo Ilić, Veljko Čubrilović, Vaso Čubrilović, Cvjetko Popović and Miško Jovanović were arrested and charged with treason and murder. Upon learning that Mehmedbašić was in Nikšić, the Austro-Hungarian authorities urged the Montenegrin authorities to have him arrested and handed over to them. Jovan Plamenac said that the Montenegrin government gave strict orders to capture Mehmedbašić, but informed the Austro-Hungarian diplomacy that the Montenegrin government had no intention to hand him over if they captured him, and that instead, a Montenegrin court would judge him. On 12 July, Mehmedbašić was apprehended by the Montenegrin authorities. However, before he was extradited he escaped from the Nikšić prison two days later. It has been claimed that the Montenegrin government hid him and had him sent over the Čakor mountain into Serbia. The Austro-Hungarian authorities suspected Montenegrin collusion in his escape and arrested the gendarmes who guarded Mehmedbašić. During his captivity Mehmedbašić admitted his complicity in the assassination. World War I In Serbia, Mehmedbašić met up with Mustafa Golubić, with whom he joined the Chetnik detachment of Vojislav Tankosić that fought in World War I. He trained Bosnian volunteers. Mehmedbašić met with Apis on several occasions. Mehmedbašić was accused of having participated in an alleged plot to kill Serbian regent Alexander in 1916. For some time, Regent Alexander and officers loyal to him had planned to get rid of the military clique headed by Apis who represented a political threat to Alexander's power. The Austro-Hungarian peace demand gave added impetus to this plan. On 15 March 1917 Apis and the officers loyal to him were indicted, on various false charges by Serbian Court Martial on the French-controlled Salonika front (known in Serbo-Croatian as ). On 23 May Apis and eight of his associates were sentenced to death; two others (one was Mehmedbašić) were sentenced to 15 years in prison. Charges were eventually reduced, leaving three death sentences in place. Among those tried, Apis, Ljubomir Vulović, Rade Malobabić and Mehmedbašić confessed their roles in Sarajevo. During the trial, Mehmedbašić