Over a month after Nancy Guthrie’s disappearance, a forensic expert is shedding light on why the mixed DNA evidence may be more complex than many realize.
Genetic genealogist CeCe Moore, who helped solve more than 300 cases using DNA, sat down with News Nation’s Natasha Zouves and offered deeper insight into the investigation, particularly the mixed DNA.
“When I first heard there was a mixture in the Guthrie case, that didn’t automatically concern me,” Moore said in an episode of “The Truth of the Matter Podcast.” “Because in some cases, that can be positive because it can give you a better idea that you’re actually working with the DNA from the perpetrator versus somebody’s DNA that was there for another reason.”
However, Moore admitted that as time passed without results, she began to suspect the DNA evidence was a “more complex mixture” and much harder to process than initially thought.
Nancy Guthrie Update: Expert Thinks Key Technology ‘Doesn’t Exist Yet’
In February, Pima County Sheriff Chris Nanos confirmed that mixed and partial DNA was found at Nancy Guthrie’s home.
“We believe that we may have some DNA there that may be our suspect, but we won’t know that until that DNA is separated, sorted out, maybe admitted to CODIS, maybe through genetic genealogy,” Nanos told NBC News.
Nanos also revealed that there are “challenges” with the sample and that it could take up to a year to resolve.
Moore shared her thoughts on the timeline, suggesting that the key technology needed to process the mixed DNA may not yet exist.
“Well, the way I interpret that means that they don’t currently have the ability to separate it, and they’re hoping that the science is going to advance,” the forensic expert explained.
She continued, “When I hear that they think it might be a year, that says to me that whatever software or whatever their bioinformatics scientists have at this moment is not successful in deconvoluting that sample.”
Forensic Expert Remains Optimistic in Nancy Guthrie Case
Although the technology to deconvolute the mixed DNA evidence found in Nancy Guthrie’s home may not exist yet, Moore stressed that there is still reason to be optimistic.
“That’s not to say that there isn’t somebody out there who is developing something or has developed something that would work,” Moore told Zouves. “So hopefully, this will spur on even more innovation and giving new people, new scientists the opportunity to present maybe something they’ve been working on.”
Please give us a Update when you find Mrs Guthrie
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