Dew k. Mosi said:
Wrong. Almost all SEXUALLY motivated serial killers are men. Black Widows, Angels of Mercy, Munchhausen By Proxy Killers are almost always women. Men kill for sex, women kill for money, revenge or attention. The Jack the Ripper murders are sexually motivated most likely, but that does not mean it is entirely impossible for a woman to have done it. No one EVER saw the murderer for certain, not one person. They saw men with the women who were close enough to the time of the murder that it is MOST LIKELY they did it. However, a deranged female who was killing prostitutes for revenge that her husband was given a disease or whatnot is not out of the realm of possibilty. No sexual tampering was discovered on the victims, and as most of them were drunk and/or ill a great deal of strength would not have been needed to take them down. You are making assumptions which are logical, but you are ignoring important deviations that while rare do occur.