autopsy. she alerted them to start looking for something that looked curveved in nature. >> at the crime scene, the area was littered with discarded tires. all were covered with brush, except for one, just 20 feet from ginger's body. >> when they looked at it, they thought them saw the what might have been blood. they thought they saw what might have been some hair on the rim of the tire. >> the tire rim was rusty. so that may have actually led to the amount of hairs that were recovered when it was processed. if it had a smoother finish, any transferred hairs may have been lost. >> more than 50 hairs were recovered, but none had roots attached that could be used for dna analysis. >> there were head injuries. you would assume that those hairs were broken off during an assault, during an attack. >> the hairs were dyed brown.