The 1978 cold case murder of California high school teacher Diane Peterson, who was stabbed to death, has been solved this year, officials confirmed.

Valparaiso police had posted on social media Monday night that officers were on scene in the 1900 block of Chicago Street with a criminal investigation.

Investigators were puzzled when the beaten body of an unidentified woman was found dumped near a Florida highway. The next day, a bloody motel room was discovered. Were the crime scenes connected?