Investigators searching for Nancy Guthrie, the mother of "Today" show co-host Savannah Guthrie, have uncovered several notable pieces of evidence as they try to identify a suspect.

Preliminary testing on gloves found about 2 miles from Guthrie’s home point to the DNA of an unknown male, authorities said. Those gloves appear to match the gloves worn by a person seen in security ...

The black glove being analyzed, which contains DNA evidence, was one of about 16 recovered near Nancy Guthrie's house.

Investigators in the Nancy Guthrie disappearance say DNA from gloves did not match any entries in a national database. CODIS is a valuable storehouse of DNA taken from crime suspects or people ...