Excerpted from Murder Most Foul:

"It was an urge. . . . . A strong urge, and the longer I let it go the stronger it got, to where I was taking risks to go out and kill people - risks that normally, according to my little rules of operation, I wouldn't take because they could lead to arrest."
- Edmund Kemper19

Jack the Ripper as a cunning yet debonair psychopathic killer is perhaps the classic stereotype that has become ingrained into the .legend・ as we know it today. A man who needed to kill, a man who had to kill; this image is so strong that a good argument can be made that the Ripper was the inspiration for the .slasher・ films that were so popular in the 1980・s, as the Ripper and the various fiendish killers in these films shared many of the same characteristics. Certainly, modern history has shown us ample examples of psychopathic/sociopathic humans, who not only craved to kill others but to mutilate and dismember them as well:

:While other boys pursued careers, education, the creation of homes and families, Jeffrey Dahmer was completely unmotivated. He must have come to view himself as utterly outside the human community, outside all that was normal and acceptable, outside all that could be admitted to another human being."19

:Jeffrey Dahmer was a master manipulator and deceiver who knew exactly what he was doing every step of the way, able to turn his urges on and off as easily as flipping a light switch. The deaths, he said, were not the acts of a madman, but the result of meticulous planning."19

Much is known today about psychopaths and sociopaths, and these generally fall into one of several well-defined categories:
ACT-FOCUSED (quick kill): - THE MISSIONARY - goes on hunting "missions" to eradicate a group of people (prostitutes, Jews, etc.) from face of earth, seems like "fine young man" to neighbors.

PROCESS-FOCUSED (slow kill):

1) THE COMFORT-ORIENTED HEDONIST - takes pleasure from killing, but also gets some profit or personal gain from it.
2) THE THRILL-ORIENTED HEDONIST - gets a "rush" or "high" from killing, an elixir of thrills, excitement, and euphoria at victim's final anguish.
3) THE POWER/CONTROL FREAK - takes pleasure from manipulation and domination (sociopath), experiences a "rush" or "high" from victim's misery.
- Philip C. Dowe10

The Ripper・s activities did show every evidence of the .meticulous planning・ mentioned by Jeffrey Dahmer and as postulated in the previous articles of this series. Such attributes should be expected from those whose pleasure lies in the slaughter of other human beings, as they have great incentive to be able to continue and kill another day.

Conclusion V if the Ripper were a true psychopath and/or sociopath, he would not have hesitated to kill, probably being limited only by time. His other motives for mutilation and leaving of the victims in public could have been as follows:

Mutilation
h Jack the Bogeyman
h Jack the Mad Man
h Jack the Jolly Man
h Jack the Human-being Stalker
h Jack the Egotist
h Jack the Thrill-seeker
h Jack the Blind Man

Public Display

h Jack the Practical Man
h Jack the Bogeyman
h Jack the Egotist
h Jack the Obsessed
h Jack the Thrill-seeker
h Jack the Anarchist
h Jack the Litterbug

SOURCES:

1. Badal, James In the Wake of the Butcher

2. Bloch, Robert Yours Truly, Jack the Ripper

3. Crime SuspenStories, The Giggling Killer
EC Publications

4. Doyle, Sir Arthur Conan The Complete Sherlock Holmes
5. Futrelle, Jacques The Thinking Machine
6. Jesse, F. Tennyson Murder and its Motives
7. King, C. Daly The Curious Mr. Tarrant
8. Maples, William Dead Men Do Tell Tales
9. Rumbelow, Donald The Complete Jack the Ripper
10. Ryder, Stephen www.casebook.org
11. Scott, George A History of Torture
12. Sledge, Eugene With the Old Breed: At Peleliu and Okinawa
13. Smithsonian Magazine, The Shadow of a Gunman from World War II
September 1993

14. Spitz. Werner, Medicolegal Investigation of Death, Second
and Fisher, Russell Edition

15. Styron William The Confessions of Nat Turner

16. Sugden, Philip The Complete History of Jack the Ripper

17. Ubelaker, Douglas Bones: A Forensic Detectives Casebook

18. von Krafft-Ebing, Richard Psychopathia Sexualis

19. http://www.crimelibrary.com

20. http://drugs.uta.edu/drugs.html

21. http://www.murdoch.edu.au/elaw/issues/v3n1/ridgway.html

22. http://65.107.211.206/

23. http://www.wcb.vcu.edu/wcb/students/...s/poecrit.html

24. http://www.daveschultz.com/scum/clinton/bodycount.html

25. http://www.sociology.org/vol003.002/...icle.1998.html

26. http://www.psycharts.com/impofthe.htm

27. http://www.stormloader.com/thescorpion/17evil.html

28. http://www.ihr.org/books/ztn.html

29. http://jama.ama-assn.org/issues/v281...jbk0609-1.html

30. http://www.science-frontiers.com/sf065/sf065p14.htm