Me Tarzan You Jane

I've been wandering about the library and the Internet for information on ridiculous suspects; however the latter has proven to be more successful on this.
Thanks Sam for the casebook link, it helped me finding useful stuff on my first suspect Jill the Ripper( also known as Jane the Ripper), the common name given to the female version of Jack.
The notion of a female ripper was first put forward in a letter by Reverend Lord Sydney Godolphin Osborne in a letter to the Times. Osborne suggests that the gruesome murders are the result of the turbulent street life of that time and area.

In Odell’s “Ripperology…” is a collage of theories taken form different authors, one he quotes is Steward who suggests that the ripper must have been a midwife. I must note that he is mentioned by a lot of ripperologists as “a personae non grata among ripperologists”. He set up a few criteria and in his research a midwife was the only one who could have been seen near the victims, was known by people in the neighbourhood, and could have wandered the streets covered in blood without being suspicious.
He has an odd attitude towards the cutting up and mutilations of the victims; this wasn’t done by a surgeon or doctor, but just a random slaughter.
A midwife would also have known a sufficient amount of knowledge about the uterus and surrounding organs.

There is however a case for a midwife ripper considering Mary Kelly’s murder. It has been said that she was pregnant at the time of the murders, although later proven wrong. Therefore needing the aid of a midwife, she undressed and neatly folded her clothes away. The midwife slaughtered her and burnt her own bloody clothes, stealing MK’s outfit and sneaked out.
Of course a midwife doing illegal abortions must know a lot of prostitutes in the area; it makes her suspicious enough to be taken in consideration as a real suspect.

Some persons are being named, one of which was Mary Pearcey; an extremely strong women capable of committing violent crimes. She was hanged in 1890.

In another book John Eddleston suggests that Olga Tchkerhoff was Jill. She emigrated from Russia with her parents and sister. The latter went into prostitution and later died after an abortion, apparently Mary Kelly lured her into it so Olga took revenge.

After some research I concluded that an Australian forensic detective recovered some DNA sample at the bottom of the stamp of one if ‘his’ letters. Despite that it’s proven that the letters were a media hoax done by a newspaper journalist and never been regarded as conclusive evidence, the DNA sample has been labelled as useless. They were too small, too old and poorly preserved.

If you might accidentally be interested in more on Jill, here’s the online version of the book I have used. http://books.google.com/books?id=8g6vSscwjT8C&pg=PA74&dq=jill+the+ripper&hl=nl#v=onepage&q=jill%20the%20ripper&f=false from p.73 onwards.