If the head belongs to one of Buffalo Bill’s victims, he has been killing for at least five years—and probably longer. However, at this point, it is impossible to know. Lecter definitely led Starling to a crime scene, but whose crime scene is it? Previously, Starling mentioned that Buffalo Bill skinned his victims; there was no mention of him beheading them. Additionally, the inclusion of the wooden dildo suggests that the crime was sexual in nature. However, at this point, Starling cannot know anything for sure.