Why was Tsar Nicholas II persecuted, slandered, and killed? Because he was Tsar, Tsar by the Grace of God. He was the bearer and incarnation of the Orthodox world-view that the Tsar is the servant of God, the Anointed of God, and that to Him he must give an account for the people entrusted to him by destiny, for all his deeds and actions, not only those done personally, but also as Tsar.
(continues on inside back cover): … he was the bearer of the consciousness that the Supreme authority should be obedient to God, should receive sanctification and strength from Him to follow God’s commandments. He was a living incarnation of faith in the Divine Providence that works in the destinies of nations and peoples and directs Rulers faithful to God into good and useful actions. Therefore he was intolerable for the enemies of faith and for those who strive to place human reason and human faculties above everything …
Tsar Nicholas II was a servant of God by his inner world-outlook, by conviction, by his actions; and he was thus in the eyes of the whole Orthodox Russian people. The battle against him was closely bound up with the battle against God and faith. In a word, he became a Martyr, having remained faithful to the Ruler of those who rule, and accepted death in the same way as the martyrs accepted it.
“Tsar-Martyr Nicholas II,” Orthodox Word vol. 4, no. 4 (21), July-Aug. 1968, p. 137