Robert K. Ressler
Born
February 15, 1937
Died
May 5, 2013 (76 years old)
Known For
Acting
Place of Birth
Chicago, Illinois, USA
Robert Kenneth Ressler was an American FBI agent and author. He played a significant role in the psychological profiling of violent offenders in the 1970s and is often credited with coining the term "serial killer", though the term is a direct translation of the German term Serienmörder coined in 1930 by Berlin investigator Ernst Gennat. After retiring from the FBI, he authored a number of books on serial murders, and often gave lectures on criminology.