I also believe it was Walter Sickert. He painted what he saw and a lot of his paintings are eerily similar to the crime photos.

"Jack the Ripper" was actually an entire band led by Sir William Gull. s physician, member of the Alpha Masonic Lodge at the Kensington Palace.

That's the theory from "From Hell", right? That's my favorite Jack the Ripper movie.

I keep seeing that movie around. I might just get it sometime. Heard it wasn't that good, but eh.

No actually, it's a theory from a series of anti-conspiracies materials I have read, regarding Illuminati, sionist masonic orders and their infiltration in the British royal family and the nazi party, etc. A real eye opener. Don't know about you, but I fully subscribe to these theories; except for the "reptilian conspiracies", that stuff is just plain retarded in my view.

I have seen "From Hell" , it's an okay movie, but I don't see it as necessarily accurate.

Also, I saw a documentary (on Discovery channel I think) about the series o murders Jack performed in America, after he moved from England. Some hot shot forensic investigator claims to have "finally discovered who Jack was".
I found a link Jack the Ripper in America

That is also the kind of theory that is espoused in the tv mini-series starring Michael Caine. It posited that Sir William Withey Gull went mad and sliced up prostitutes as a form of research and he only stopped when the police used a full royal pardon to get his driver, John Netley, to take him out and attempt to get him to perform another murder (which involved a prostitute that was in the pay of the police and who was later sent away from London so that she could not talk about her part in the plan)... the doctor was caught and sent to an asylum where he later died. The mania was said to be the result of a stroke.

Another theory is that the prostitutes were all in the know about a marriage between Prince Albert Victor and a young woman called Annie Elizabeth Crook. She had a baby and the murders were performed (again by Gull and his Masonic connections) to silence all of the women that knew about it and prevent them from trying to blackmail the British government (which sounds utterly ridiculous to me, but there you go... there are theories to support anyone's ideas lol).

I'm not keen on the author Patricia Cornwell's case against the artist Walter Sickert, and on more than one occasion her case seemed to be built upon her own bias than any actual kind of evidence (at least that is the way it seemed to me when I read her book).

My favourite theory is the one about Sir William Gull, but I don't think it's true... even in the Victorian era there were easier ways of disposing of people you wanted gone, without attracting the attention of the entire world! Getting away with murder was easy back then and the East End was rife with extreme violence. The Jack the Ripper murders have always struck me a complete overkill (no pun intended) and vastly more intense than they would have needed to be just to "shut the whores up." I see no reason why, if the purpose of the slayings was to just quieten loose tongues, that the killings would grow in intensity until the killer did what he did to Mary Jane Kelly (the picture of her in-situ is brutal and shocking, even today). Stab them or cut their throats, yes. Disembowel and mutilate them, no. Take bits of the body away for a trophy, no.

The case against Tumblety has much more weight for me... he hated women, he was a collector of female sexual organs (ick!) and he seems to have been in London at around the same times as the murders occurred. Also, when he returned to the States (via France) the murders ceased.

It's one of those subjects that a lot of people have an idea about, but like all the other theories there is just as much evidence to support one, as there is to support all the others... that evidence sadly being not one hell of a lot

Some guy who was smarter then the average person, who just went mad. I don't think he was apart of Scotland Yard because in those days the police were never very good at catching the criminal.