Nancy Guthrie was taken from her home in Tucson, Arizona, more than two weeks ago and remains missing. Authorities have yet to publicly name any suspects or persons of interest as they investigate recovered DNA.

Authorities trying to solve the disappearance of Nancy Guthrie say they might tap DNA genealogy databases, the same step that police took to unravel a decades-old series of murders in California and the fatal stabbings of four college students in Idaho.

Here's what to know about the DNA evidence collected so far in the investigation into Savannah Guthrie's missing mother and what results are pending.

The man leading the investigation into Nancy Guthrie's apparent abduction is hopeful that DNA evidence discovered at the 84-year-old's Tucson, Ariz. , home could lead to an arrest.

DNA from gloves found two miles from Nancy Guthrie's home doesn't match DNA in the FBI database. Investigators explore genetic genealogy as search continues.

Authorities are searching for clues that may lead them to the person seen on Nancy Guthrie's Tucson, Arizona, porch the morning she went missing.

Nancy Guthrie investigation officials say investigative genetic genealogy, like the method used in the Bryan Kohberger case, is being pursued for DNA leads

Former FBI special agent Ken Gray said the first two communications from the family were appeals to the kidnapper and aimed to humanize Nancy Guthrie. One week after her disappearance, another, much shorter video was intended to tell the purported kidnappers they are willing to pay a ransom.