Additional DNA evidence found at Guthrie's residence still was being analyzed, sheriff's spokesperson Angelica Carrillo said in a Feb. 17 update.

Investigators said the DNA evidence from gloves found approximately 2 miles from Nancy Guthrie's house was submitted to a lab in Florida and to the Combined DNA Index System (CODIS).

Last week, the FBI released images and a description of a suspect recovered from doorbell surveillance video, which appear to show a match to the black glove in question.