Nancy Guthrie update: DNA couldn't be profiled from crime scene hair sample, sheriff says

TUCSON, Ariz. — Investigators couldn't obtain a DNA profile from a hair sample recovered inside Nancy Guthrie’s home, Pima County Sheriff Chris Nanos told Fox News Digital in a new interview Thursday as the case nears its six-month mark.

"Yes, there was a hair. We had it and thought, 'OK, well, we'll do the DNA first,' right? You're going to do DNA before something else," he explained.

Working with the FBI, investigators sent the sample to a California laboratory for additional DNA testing.

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"It came back ... there's no DNA," Nanos said. "But does that mean the hair isn't that of the suspect? We won't know that till we have the suspect's hair. You don't just destroy it."

Investigators have preserved the sample, and it still may be of use later, he added.

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