India, April 10 -- The disappearance of Nancy Guthrie could see a breakthrough as DNA experts point to emerging forensic technologies that may help crack the high-profile case that has so far baffled investigators.

DNA expert CeCe Moore told News Nation's Brian Entin that developments in DNA analysis, especially methods for separating complicated or "mixed" samples, may be vital in identifying a suspect.

DNA discovered inside Guthrie's Tucson, Arizona, residence in late February was "mixed," indicating the samples had genetic material from other individuals, according to Pima County Sheriff Chris Nanos. Running the DNA via national databases to find possible suspects has since proven more challenging for investigators.

The case has rea...