▁symbol ▁is ▁re att ached ▁to ▁the ▁body ▁of ▁a ▁shapes h if ter . ▁ ▁Production ▁ ▁Writing ▁and ▁film ing ▁" M oment um ▁De ferred " ▁was ▁written ▁by ▁screen writ ers ▁Z ack ▁St ent z ▁and ▁Ash ley ▁Edward ▁Miller . ▁In ▁the ▁first ▁several ▁draft s ▁of ▁the ▁episode , ▁it ▁was ▁initially ▁called ▁" This ▁is ▁the ▁Night ▁Mail ," ▁which ▁was ▁based ▁on ▁a ▁poem ▁by ▁W . H . ▁Aud en . ▁The ▁episode ▁completed ▁the ▁" gun ▁arc " ▁story line , ▁which ▁began ▁with ▁Oliv ia ▁hurt ling ▁out ▁of ▁her ▁SU V ▁in ▁the ▁season ▁premi ere ▁and ▁being ▁too ▁weak ▁to ▁control ▁her ▁gun ▁during ▁her ▁physical ▁recovery , ▁and ▁ended ▁with ▁the ▁killing ▁of ▁the ▁shapes h if ter ▁pos ing ▁as ▁Charlie ▁Francis . ▁Miller ▁and ▁St ent z ▁elabor ated , ▁" I ▁think ▁it ' s ▁Jeff ▁P ink ner ▁who ▁described ▁the ▁first ▁several ▁episodes ▁as ▁the ▁gun ▁arc . ▁Because ▁really ▁the ▁gun ▁played ▁out ▁until ▁Oliv ia ▁was ▁whole ▁again . ▁Her ▁actions ▁with ▁the ▁gun ▁in ▁all ▁of ▁those ▁episodes ▁symbol ized ▁where ▁she ▁was ▁on ▁the ▁journey . ▁And ▁it ▁cul min ates ▁in ▁her ▁being ▁able ▁to ▁use ▁it ▁to ▁kill ▁someone ▁who ▁looks ▁exactly ▁like ▁her ▁best ▁friend ." ▁ ▁Co - exec utive ▁producer ▁Joe ▁Ch app elle ▁worked ▁as ▁the ▁episode ▁director . ▁He ▁commented , ▁" I ▁was ▁so ▁looking ▁forward ▁to ▁direct ing ▁ 2