Complex sentence: When Déagol refused to give it up, Sméagol strangled him and hid his body, which was never found; nevertheless, the murderer (nicknamed "Gollum" after the swallowing noises he made) was eventually driven from his home.
Split into simpler sentences: When Déagol refused to give it up, Sméagol strangled him. Sméagol hid his body, which was never found; nevertheless, the murderer (nicknamed "Gollum" after the swallowing noises he made) was eventually driven from his home.