Narrator even though sierra Bouzigards Murder appeared to be sexually motivated, no dna was recovered from her rape kit. But thanks to sierra, the killer left his dna behind. She apparently fought off a sexual assault before being killed. The coroner was able to obtain a Dna Sample from under the fingernails of sierra. Narrator this meant the killer would likely be scratched up. Even better for investigators, this Dna Profile matched other evidence at the scene. Quaal there was a profile obtained from a candy wrapper