Complex sentence: The president and the mayor of Metropolis try to use the revolution to overthrow Red and gain control of Metropolis, but they are assassinated by the president's top military commander General Kusai Skunk, who has sided with Red.
Split into simpler sentences: The president and the mayor of Metropolis try to use the revolution to overthrow Red and gain control of Metropolis. However, they are assassinated by the president's top military commander General Kusai Skunk, who has sided with Red.