India, May 26 -- Nearly four months after Nancy Guthrie vanished from her upscale Tucson neighborhood, investigators and online communities are again focused on a possible new clue with a pajama shirt discovered near disturbed ground along Highway 79 has reignited public attention in one of Arizona's most closely watched missing persons investigations. The discovery comes as authorities continue to pursue leads in a case that has already generated national headlines, intense online speculation and a reward exceeding $1.2 million.

Nancy Guthrie Case Latest Update: Pajama Discovery Raises New Questions

The latest development emerged after independent searchers reportedly located a pajama top roughly 30 minutes north of Nancy Guthrie's Cat...