Question: Can you name a female serial killer who murdered people because it gave her sexual pleasure? I just watched the movie "Mr. Brooks" where a man kills because he gets off on it, and he later learns that his daughter has inherited the same disorder. While I'm glad to see Hollywood showing the importance of genes for behavior (my students NEVER raise genes as a possible cause of crime), I couldn't buy the idea of a girl as a lust killer. I'll admit I'm no expert, but the few female serial killers we know of kill for money, or in the case of Aileen Wuornos, perhaps revenge as well.
Evidently, serial killers reveal the sex differences of normal people. Men are motivated by sex, and women are motivated by money and status. Men get status in order to get laid (Bill Clinton is a classic case) while women use sex to get status. I'm not absolutely sure this is true, but I say it in the hope that it will offend someone.