Genetic genealogist CeCe Moore advised investigators to return to Nancy Guthrie’s Tucson, Ariz., home to collect more DNA samples.
Nancy, the 84-year-old mother of Today show co-anchor Savannah Guthrie, was kidnapped from her home on January 31. Despite receiving over 40,000 tips, authorities have yet to name a suspect.
CeCe, widely credited with pioneering the field of forensic genetic genealogy to solve cold cases, believes that even if previous samples were “mixed,” as described by Pima County Sheriff Chris Nanos in February, or were inconclusive, modern forensic technology — specifically new DNA deconvolution tools and whole-genome sequencing — could isolate the perpetrator’s genetic profile from complex mixtures.
CeCe suggested that investigators re-swab specific areas, such as doorknobs, where even a tiny amount of “transfer DNA” or saliva might have been left behind…