Complex sentence: Chloe finds out that Ned actually delivers women to Stan because of Toby's closet full of skeletons that Stan knows about and when they discuss what to do with Chloe they decide to kill her.
Split into simpler sentences: Chloe finds out that Ned actually delivers women to Stan because of Toby's closet full of skeletons that Stan knows about. They discuss what to do with Chloe, and decide to kill her.