Derby Wagner-Richardson was abducted from her security post in Racine, Wisconsin, and found dead in the trunk of her car. Now, just over 37 years later, her estranged husband has pleaded not guilty.
Community man William "Michael" McCuen sustained 17 stab wounds — including a fatal one to the heart — in an ambush that began while he was asleep in his Anderson County home.
Kohberger's defense attorneys believe cellphone data supports his insistence that he was out driving at the time Kaylee Goncalves, Madison Mogen, Xana Kernodle, and Ethan Chapin were brutally stabbed to death.
Take a look back at the 2010 case of 24-year-old Jennifer Pan, a woman accused of trying to have her overbearing parents killed, as once featured in Oxygen's Snapped: Killer Couples.
Kelly Siegler and Abbey Abbondandolo join the Beaumont Police Department in their investigation into the mysterious 1999 disappearance of Kimberly Langwell.