Human skull found in Goodwill donation box prompts police response, deemed historic with no forensic value

A human skull was found by Goodwill employees going through a donation box in Arizona.
Police were called to investigate but found no immediate connection to any crime.
The medical examiner determined the skull to be old and have no forensic value.
The identity of the skull's owner and who donated it remain unknown.
Goodwill cooperated with authorities and followed proper protocol in reporting the unusual donation.