Complex sentence: Once he does so, the furious Homer finds Bart and Milhouse laughing at another Angry Dad cartoon and strangles Bart for the humiliation the town has given to him through his cartoons.
Split into simpler sentences: Once he does so, the furious Homer finds Bart and Milhouse laughing at another Angry Dad cartoon. He strangles Bart for the humiliation the town has given to him through his cartoons.