60 Minutes · Search for Nancy Guthrie reaches 100 days as DNA evidence is probed

1. 1. One hundred days since Nancy Guthrie disappeared, with few leads and friction between agencies.
2. 2. A partial DNA sample from the scene, not Nancy Guthrie's, is under Quantico analysis.
3. 3. Investigators are using genealogy websites to find familial matches to the partial DNA evidence.
4. 4. Despite Ring Cam video and ongoing efforts, investigators currently lack a confirmed suspect.
5. 5. Pima County officials initially excluded federal agents from the crime scene for four days.