Jack the Ripper Sir William Gull, the man who carried out the Masonic murders.

[Masonic Ritual Murders, as outlined in Jack the Ripper: The Final Solution by Stephen Knight.]

Masonic Ritual Murders AKA Jack the Ripper by Uri Dowbenko

Books
Jack the Ripper: The Final Solution by Stephen Knight
Stalin's British Training by Greg Hallett (Chapter: Jack The Ripper and Sir Melville Macnaghten)

Quotes
"The Committee of 300 is for the most part under the control of the British monarch, in this case, Elizabeth II. Queen Victoria is believed to have been quite paranoid about keeping it secret and went to great lengths to cover up MASONIC writings left at the scene of "Jack the Ripper" murders which alluded to the Committee of 300's connections with "experiments" carried out by a family member who was also a highly-placed member of the Scottish Rite of Freemasonry. The Committee of 300 is filled with members of British aristocracy which has corporate interests and associates in every country of the world, including the USSR." John Coleman Committee of 300