Nancy Guthrie's disappearance from her Tucson home on 1 February has left investigators relying on a single, stubborn piece of evidence— a tangled DNA sample that top experts now warn may be impossible to crack with the tools the FBI currently has.
In an interview this month, leading genetic genealogist CeCe Moore said detectives are effectively 'waiting for tech that doesn't exist yet' to move the Nancy Guthrie case forward. Although the science is moving quickly, the bioinformatic software available now could still need months, or even up to a year, to catch up with the complexity of this particular sample.
