Workers find human heart in salt pile in Tennessee, triggering homicide investigation: "Somebody, somewhere knows"

Authorities are investigating the discovery of a human heart in a salt pile at a Tennessee Department of Transportation facility. The case is now being treated as a homicide, CBS affiliate WTVF reports.

Workers at the facility in McEwen were making preparations for inclement weather Thursday when they came across something unusual that was later confirmed to be a human heart, Humphreys County Sheriff Chris Davis said. Officers were searching other salt piles at the facility Friday.

The organ was transported to the state medical examiner's office in Nashville, where testing of tissue samples confirmed that it was an adult male human heart, Davis said. The heart had been dehydrated by the salt and it was unclear how long it had been there, he said.