The investigation into Nancy Guthrie's disappearance, which occurred over two months ago in Arizona, remains unsolved, with no suspects identified. DNA expert CeCe Moore has highlighted the challenges posed by mixed DNA samples collected from Guthrie's home, which contain genetic material from multiple individuals. She advocates for a renewed search of the residence, believing that the perpetrator likely left genetic evidence behind. Advances in forensic technology, including whole genome sequencing, may enhance the ability to analyze these complex mixtures. Moore noted that urgency surrounding high-profile cases could accelerate the development of new DNA analysis techniques. If investigators fail to find usable DNA at the home, she suggests that discovering a second crime scene could provide another opportunity for evidence collection. Moore remains hopeful that the case can progress, emphasizing that the lack of findings does not signify an end to the investigation.