The disappearance of Nancy Guthrie has remained an enigma for over 100 days, yet a veteran investigator suggests that the breakthrough may already be sitting in police files.
The 84-year-old mother of NBC News anchor Savannah Guthrie was abducted from her home in Tucson, Arizona, on 31 January, and a retired Pima County detective now says he is convinced that investigators already have the kidnapper's name somewhere in the tens of thousands of leads pouring into her search.