- How a recent shift in DNA sleuthing might help investigators in the Nancy Guthrie case NPR
- Accomplice not ruled out in Nancy Guthrie disappearance, Arizona sheriff says CBS News
- Arizona authorities turn to genetic genealogy in ongoing search for Nancy Guthrie NBC News
- With no initial DNA match, Guthrie investigators turn to one of their newest tools to crack cases: genetic genealogy CNN
- Armchair Detectives Complicate Nancy Guthrie Case The New York Times
