Perhaps no political murder had such a historical resonance as the shots fired on June 28, 1914 in Sarajevo. For more than a century, there has been controversy surrounding the high school student Gavrilo Princip who produced them. Some consider him a hero, an ideological fighter for the liberation of the southern Slavs from foreign oppression; others - the human detonator who led to the disaster of the First World War; still others - a banal killer who suffered from an inferiority complex, a narrow-minded dropout who was used by powerful forces. What relation did the Serbian authorities and the Russian Socialist Revolutionaries have to the assassination attempt on the heir to the Austrian throne? Was there a Masonic trace in the Sarajevo murder? Why did Princip’s name appear in 1937 at the Stalinist political trial against the Trotskyists? How did the memorial plaque from the scene of the assassination end up in Hitler's possession? Evgeniy Matonin gives answers to these questions in the first full biography of Gavrilo Princip in Russian, written on the basis of documentary materials and lifting the veil of the “secret of the century.” [Adapted for AlReader]