After becoming Russia's all-powerful Tsar, Nikolai Alexandrovich Romanov and his family were killed by what "Red Terror" group?

Answer Bolsheviks

Due to an enormous wealth gap between the wealthy and the peasants and working class, an organized march on the tsar's palace led to many protesters being killed in what has become known as Bloody Sunday. After several revolutions – the last, led by Vladimir Lenin – Nikolai became the last of the Russian tsars. Nikolai Alexandrovich Romanov and his entire family were killed by the Bolsheviks in 1918.

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