Mary Ellen has spent her career studying the criminal mind. One of the most senior profilers for the Federal Bureau of Investigation FBI until her retirement in 2009, Mary Ellen has helped capture, interview and understand some of the world's most infamous people. During her time in the unit, Mary Ellen developed an expertise in Criminal Investigative Analysis (CIA) as well as offender behavior. She has provided assistance to law enforcement and prosecutors on a wide range of violent and criminal behavior including serial and single homicides, sexual assaults, kidnappings, product tampering, school shootings, arsons and bombings and extortions. Watch now to find out what REALLY goes into the life of an FBI Profiler!