In 2011 in a small Tennessee county, the disappearance and murder of a nursing student would change the area forever.

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

Nearly 15 years after 20-year-old nursing student Holly Bobo vanished, ABC News' Eva Pilgrim explores the case in the podcast, “What happened to Holly Bobo?” ...

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.