Devastated by Charlie’s death, Sam and Dean cremate her body. Dean decides to slaughter the Styne family in revenge for her murder, and the guilt-ridden Sam at first gives into Dean’s order for him to cease work on finding a cure for the Mark from the Book of the Damned. After noticing Charlie’s email when telling Castiel of her death, however, he decides to continue and shows the email to Rowena. Rowena can now decipher the Book’s secrets, but will only do so once Sam kills Crowley; thus, Sam lures Crowley into a trap and tries to kill him. Crowley survives but, embittered by Sam’s betrayal and rejection of his attempts to be good, re-embraces his evil, now planning to kill Rowena for arranging for his death. Meanwhile, Dean tracks the Stynes to Shreveport, Louisiana, where he is arrested by the corrupt police before forcing the sheriff to tell him where to find the Stynes. Dean is captured when attacking their mansion and they prepare to dissect him, but he escapes and brutally slaughters the assembled family members. When he returns to the bunker, he finds the last three Stynes robbing it, and kills all three despite the youngest Styne’s pleas for mercy. Castiel remonstrates with Dean, but Dean beats him savagely and comes close to killing him with an angel blade. Before leaving, he warns Castiel that he will kill him and Sam if he should see them again.