Final answer:
The assassination of the Tsar led to increased repression and strict control by the government, undermining the goals of the rebel groups.
Step-by-step explanation:
The assassination of the Tsar, particularly the assassination of Alexander II, had a significant impact on the way the Tsar and his government reacted. It led to a period of increased repression and strict control over the country. The new Tsar, Alexander III, reinstated harsh methods such as an expanded secret police and strict censorship to suppress dissent and maintain control. He also implemented Russification policies to suppress non-Russian cultures within the empire. The goal of the rebel groups was to bring about revolutionary changes and dismantle the Tsarist autocracy. However, the assassination ultimately resulted in a more repressive and nationalistic response from the Tsarist government, which undermined the goals of the rebels.