Investigators in the Nancy Guthrie disappearance say DNA from gloves did not match any entries in a national database.

An FBI spokesperson told Fox News on Sunday that out of several gloves recovered during the search for 84-year-old Nancy Guthrie, one glove appears to match the gloves of the suspect seen on surveillance footage,

Investigators said DNA on gloves found near Nancy Guthrie’s house did not return a match. They are looking into using investigative genetic genealogy, in which DNA is compared with consumer ancestry databases to build a family tree.

The glove was found about 2 miles from Nancy Guthrie's Arizona home and resembles those worn by a masked person seen in a video at her front door the night she vanished.

Ghost lineages reveal themselves through ancient genes that still exist in living beings today.

New DNA technology led to the arrest of suspect in the 25-year-old slaying of University of Georgia law student Tara Baker, trial testimony shows.

Pima County Sheriff Chris Nanos said the results that investigators have received from DNA testing in the Nancy Guthrie case so far haven't led to a suspect.

"I’m just glad justice was finally done," sister Linda Galpin said. "I always said it would never happen in my lifetime."