The character Ephraim Fabricant was named for real-life murderer Valery Fabrikant, a mechanical engineering professor who shot dead four of his colleagues in what became known as the Concordia University massacre [REF].
"Lamentation" also introduces the character Lucy Butler, who would return in "Powers, Principalities, Thrones and Dominions",[REF] as well as in the second season episode "A Room with No View",[REF] and the third season episodes "Antipas"[REF] and "Saturn Dreaming of Mercury" [REF].