Complex sentence: Laurie had found a picture of Bobby and Roxanne naked, and Laurie had given Richie the picture out of jealousy, never expecting Richie to kill Bobby for sleeping with Roxanne.
Split into simpler sentences: Laurie had found a picture of Bobby and Roxanne naked. She had given Richie the picture out of jealousy, never expecting Richie to kill Bobby for sleeping with Roxanne.