In 2011, Holly Bobo was abducted from her home in rural Tennessee. The investigation went cold for two years, until a hunter makes a gruesome discovery.
In 2016, Tricia Todd is reported missing when she fails to pick up her daughter from a babysitter. Police used her online journal to discover what happened.
In 2000, 31-year-old Mike Williams vanished whilst duck hunting in Florida. His boat and gun were found, but it took 17 years for police to find the suspects.
In 2014, Nancy Pfister's body was found in her closet. Police had several suspects but minimal evidence until they looked at her personal items.
In 1982, JoAnn Tate was stabbed to death in her home in St Louis. Her three young children were also attacked, and they helped lead police to the killer.
In 2012, Michelle Mockbee's beaten body was found at work. She was wearing her sapphire ring, so robbery was ruled out. The case stalled until a video blew it open.