Fifty days after Nancy Guthrie vanished from her home near Tucson, Arizona, veteran cold case detective Brian Martin has said the case still appears solvable, with DNA evidence likely to offer the clearest route forward in the search for the 84 year old mother of Today presenter Savannah Guthrie. Martin's comments were reported on Sunday as the investigation entered its seventh week without an arrest or a confirmed suspect.
Nancy Guthrie was last seen on the night of 31 January and was reported missing the following day after failing to appear at church, with investigators later treating the case as a possible abduction. In the weeks since, the case has drawn national attention, partly because of her daughter's public profile, but also because the inquiry has produced a string of dramatic developments without the one thing that matters most, which is a break that holds up.
