h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

This entry comes across as completely unintelligible because you aren't getting your definitions of insanity and sanity correct. In fact, they are completely the wrong terms to use.

If by *insane* you mean genetically disposed to murder people, and by *sane* you mean changed by social factors to want to kill people to fill a psychological need, then about half of what you said makes sense. However, this is down to belief, not specific fact : it all depends what your psychological leanings are. Most serial killers ARE psychologically unbalanced, and their behaviour does fit a specific pattern. For example, they are psychotically inclined, or are easily manipulated by outsde forces (be it the church or a paedophile)....it is an old fashioned idea to believe that "evil" is born, not made. Often one of an individual who cannot accept the responsibility that they played a part in the crime.

I think maybe once you define your terms, this guide would be much better, regardless of your belief system on what makes a serial killer kill.