An ex-FBI criminal profiler has offered his insight into the Nancy Guthrie case, noting that a tattoo may be a key piece of evidence. In a recent interview, the former FBI agent shared his thoughts on ...

A retired FBI agent hailed as one of the "pioneers" of contemporary criminal profiling has offered insights into the possible "personality" of Nancy Guthrie's abductor. The disappearance of the ...

FBI approval of Thermo Fisher Scientific's RapidINTEL Plus Cartridge for forensic DNA profiling on the RapidHIT ID System. Rapid DNA workflows on RapidHIT ID can now generate profiles eligible for ...

OK. We're now joined by former FBI agent and FBI profiler Mary Ellen O'Toole. She worked in the agency's Behavior (ph) Analysis Unit for more than a decade and is now the director of the forensic ...

Add Yahoo as a preferred source to see more of our stories on Google. Photo Credit: Don Arnold/WireImage via Getty Images An ex-FBI criminal profiler has offered his insight into the Nancy Guthrie ...

Profiling, or criminal investigative analysis, as it is called by the FBI, involves the investigation of a crime with the hope of identifying the responsible party, based on crime scene analysis, ...

As the search for Nancy Guthrie continues, former investigator and criminal profiler Mike King examines the behavioral clues ...

Nancy vanished from her home outside Tucson, Arizona, on February 1 (Image: Nathan Congleton/NBC via Getty Images) A criminal profiler instrumental in shaping the FBI's approach to serial killers ...

Twelve days into the investigation into the disappearance of Savannah Guthrie’s mother Nancy Guthrie authorities have yet to identify a suspect or even a person of interest, but a former FBI profiler ...

In this Friday, March 2, 2012 photo, Allyson Goble, a forensic scientist at the New York State Police Forensic Investigation Center in Albany, N.Y., screens a pair of blue jeans for biological ...