A volunteer search group in Mexico launched a search for missing Arizona woman Nancy Guthrie after receiving an anonymous tip claiming she was buried in an unmarked grave near the U.S.-Mexico border. The tip led searchers to the Mariposa area near Nogales, Mexico, but no evidence connected to Guthrie was found.
Nancy Guthrie, 84, is the mother of Today show anchor Savannah Guthrie. She disappeared from her Tucson, Arizona, home on February 1, and investigators believe she may have been abducted. More than four months later, no arrests have been made, and authorities have not confirmed whether the latest tip is credible. The case remains under investigation, with volunteer groups and law enforcement continuing their efforts to find answers.