Sofía Chotek
Later that day, Gavrilo Princip managed to kill both Archduke Franz Ferdinand and his wife Sophie, Duchess of Hohenberg. Princip and Nedeljko Čabrinović were interrogated by the police. They kept to the promise to not tell anyone. Muhamed Mehmedbašić managed to escape to Serbia but Grabež, Popović and the Čubrilović's were arrested and charged with treason and murder after Danilo Ilić told the police. The police went round and investigated random people in order to identify potential accomplices. Once they spoke to Ilić, he lost his nerve and spilled the beans.