The Nancy Guthrie case could be broken open by the same specialist DNA lab that helped identify evidence linked to Gilgo Beach suspect Rex Heuermann, a leading genetic genealogist has suggested after the FBI took control of a crucial rootless hair sample recovered from Guthrie's Tucson home.
Guthrie, 84, the mother of Today anchor Savannah Guthrie, was last seen at her secluded home near Tucson, Arizona, on 31 January. Investigators believe she was abducted in the early hours of 1 February.
