Critical Nancy Guthrie DNA Evidence Being Tested: Details

Photo Credit: Jan Sonnenmair/Getty Images More than 100 days after Savannah Guthrie's mother disappeared from her Arizona home, investigators are still searching for answers. But now, a crucial piece of DNA evidence could become the biggest break in the case so far. Authorities confirmed that genetic material recovered from Nancy Guthrie's property remains under analysis as the investigation continues. Nancy, 84, vanished on Feb. 1 after a masked man armed with a handgun was reportedly captured on surveillance footage outside her Tucson-area home. Hope rests on the DNA evidence as Savannah . . .