Complex sentence: However, the Eighth Brother's lightsaber was damaged during his battle with the Jedi, and during his attempt to escape by using it like helicopter rotors it failed and he plummeted to his apparent death.
Split into simpler sentences: However, the Eighth Brother's lightsaber was damaged during his battle with the Jedi. During his attempt to escape by using it like helicopter rotors, it failed and he plummeted to his apparent death.