125 years later, the area became known for something else, when some hunters found what looked to be a human skull. >> we treat it as a crime scene, making the assumption that it is going to be a homicide. >> nearby were bits of clothing and a woman's shoe. police sifted through the dirt and found some smaller bones and a strand of hair. forensic anthropologist dr. harrell gill-king estimated the bones had been exposed to the elements for over a year. one piece of bone at the bottom of the spine called the sacrum indicated the victim was female. >> the shape of the sacrum in females is distinctive. it's much more flared. it's all part of the birth difference between females giving birth and males not.