The series of murders in East London's poor Whitechapel district in the 1880s created a frenzy of interest.
Jack the Ripper was most likely an East London slaughterhouse worker, says New Zealand-based animal welfare expert Professor Andrew Knight.
Knight said the way the prostitute victims were butchered matched techniques used by meat workers and not those of a surgeon - another popular theory.
This and other clues led him and Katherine Watson, an Oxford historian, to publish an academic paper on their Ripper theory earlier this year.
"We honestly think we have solved this case," Knight said.
Full details of this new theory: https://www.stuff.co.nz/life-style/99427384/new-jack-the-ripper-theory-links-meat-works-and-sexual-violence