Complex sentence: The disturbing rate at which journalists have been murdered in Russia shows the limits of freedom of speech; most major television networks and newspapers are state-owned or influenced by the government and openly support parties that support the government during elections.
Split into simpler sentences: The disturbing rate at which journalists have been murdered in Russia shows the limits of freedom of speech. Also, most major television networks and newspapers are owned or controlled by the government and openly support it or parties that support the government during elections.