Although only five murders can be attributed for certain to this person, he is probably the most famous mass-murderer of all time. Who did this dirty work about 100 years ago in London?

In the autumn of 1888, a series of gruesome murders terrified the impoverished Whitechapel district of London's East End. The killer targeted female sex workers, a vulnerable population in the overcrowded and squalid slums of Victorian London. At least five women—Mary Ann Nichols, Annie (Review) Chapman, Elizabeth Stride, Catherine Eddowes, and Mary Jane Kelly—are considered the "canonical five" victims of this single murderer. The brutal nature of the crimes, which involved throat-cutting and abdominal mutilations, led to speculation that the killer possessed anatomical or surgical knowledge.

The murderer was never identified, and the case remains one of the most famous unsolved mysteries in criminal history. His infamy was fueled by extensive newspaper coverage and a taunting letter sent to the media signed with the chilling moniker that would become legendary. Although this letter is widely believed to have been a hoax created by journalists to sensationalize the story, the name stuck. The legend of this mysterious figure has captured the public's imagination for over a century, cementing his status as a notorious figure despite the relatively small, confirmed number of victims.