Robert K. Ressler (1937-2013) was an expert in the area of violent criminal offenders and a twenty-year veteran of the Federal Bureau of Investigation. He innovated many of the programs which led to the formulation of the FBI's National Center for the Analysis of Violent Crime.
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Face-to-face with some of America's most terrifying killers, FBI veteran and ex-Army CID colonel Robert Ressler learned from them how to identify the unknown monsters who walk among us-and put them behind bars. Now the man who coined the phrase 'serial ki... SEE MORE