Five months into the investigation of Nancy Guthrie's abduction, authorities are still seeking strong leads. Recent social media reports claim lights were seen at her Tucson home, sparking renewed speculation. Meanwhile, a Mexican search group reported an anonymous tip about a possible burial site near the border, though local authorities have not been contacted.

A social media post has sparked fresh discussion in the Nancy Guthrie case after claiming lights were visible at the Tucson family home.

Experts explain how a homicide case could move forward even without recovered remains in Nancy Guthrie's case.