Complex sentence: Later that day, Grampa stops by the Simpsons' house and tells everybody that he knows who the cat burglar is: a resident in the local retirement home named Molloy.
Split into simpler sentences: Later that day, Grampa stops by the Simpsons' house and tells everybody that he knows who the cat burglar is. The burglar is exposed as being a resident in the local retirement home named Molloy.