:''A reference to the events of [[1.20 Dead Man's Blood]] where [[Jenny (Vampire)|Jenny]] and [[Kate (vampire)|Kate]] were the only vampires to escape the Winchesters on their very first [[vampire]] hunt.''
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Dean's death scene was written as having him on the ground with Sam cradling him, but [https://www.youtube.com/watch?v=SC_t1yerxR0 Jensen fought to change it so the brother's were facing each other] becasue it was "more powerful".}}
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Dean's death also mirrors Sam's first death from [[2.21 All Hell Breaks Loose: Part One]]. Both are stabbed in the back, with the other brother seeing blood on their hands from the wound. Dean similarly asks Sam, "Come here. Let me look at you" during both death scenes.