The heartbreaking murder of a small-town Pennsylvania police chief seemed like an open-and-shut case in December of 1980. After all, whoever shot Gregory Adams appeared to have left a driver's license at the scene of the crime. But investigators soon learned that the case would prove to be much more challenging to close than they ever could have imagined.

"Crimes of the Centuries" is a podcast from Grab Bag Collab exploring forgotten crimes from times past that made a mark and helped change history.

Follow us on Instagram and Twitter: @centuriespod