"Though the U.S. has only about 5 percent of the world population, it has produced 76 percent of known serial killers since 1900" (Apsche 76). Serial murder is a national problem in America and authorities are beginning to develop techniques to track, identify, and capture these predators. Psychological profiling, DNA testing and violent criminal data bases are all tools used to identify serial killers. Psychological profiling is a young, investigative tool. It was developed in the 1950 's and has been improved upon ever since. In 1956, forensic psychiatrist, James Brussels, prepared an amazing profile of the "Mad
Cited: Angelella, Michael. Trail of Blood. New York: New American Library, 1979. Apsche, Jack. Probing The Mind of a Serial Killer. Morrisville, Penn.: International Information Associates, 1993. Crime and Criminals: Opposing Viewpoints. San Diego, CA: Greenhaven Press, Inc., 1995. Dolan, Robert. Serial Murders. New York: Chelsea House, 1997. Fox, James Alan, and Jack Levin. Overkill: Mass Murderers and Serial Killing Exposed. New York: Plenum Press, 1994. Friedland, Bruce. Personality Disorders. Philadelphia: Chelsea House, 1991. Jones, Ann. Women Who Kill. New York: Holt, Rinehart & Winston, 1980. Michaud, Stephen, and Hugh Aynesworth. Murderers Among Us. New York: Signet, 1991. Newton, Michael. The Encyclopedia of Serial Killers. New York: Facts On File, Inc., 2000. Schechter, Harold, and David Everitt. The A-Z Encyclopedia of Serial Killers. New York: Pocket Books, 1996.