VA: The Colonial Parkway Killer

In Virginia there is a 23 mile stretch of road known as the Colonial Parkway. Over a ten-year span, a series of unusually similar murders occurred here. To this day, no one knows who is responsible. There could be one murderer, or many, living day to day with the rest of us. It's also possible that this killer moved on, and committed other similar murders. Many theorize the killer is either a police officer or park ranger. However, no one can say for sure.