The search for missing Arizona resident Nancy Guthrie reaches its 100th day, with investigators still processing evidence related to the case. According to reporting from both New York Post and CBS News, a DNA sample recovered from Guthrie’s home is currently being examined at the FBI’s crime laboratory. Authorities say the material is still undergoing extensive testing, and the investigation continues while officials look for information that could lead to a break in the case. Both outlets describe the DNA work as a key part of the effort, indicating that analysis is not yet complete and results have not been publicly reported. Meanwhile, the search remains active as the timeline extends to roughly three and a half months. The coverage underscores that investigators are relying on forensic testing to potentially advance leads, while the outcome of the DNA probe is still pending. Overall, the two reports align on the case’s 100-day milestone and the ongoing FBI examination of DNA evidence as a central investigative step.