The thing about psychopathic mass-murderers is that there is no real way to tell what kind of people they may be killing, it is possible that one of the 'street women' Jack killed could have been destined for greatness... or even worse evils than Jack himself.
Perhaps Mary Jane Kelly, the last of Jack's victim's, could have been saved moments before her murder by George Husk popping a cap in Jack's ass just as he withdrew his knife. Ms. Kelly, though destitute at the time saw this as a sign to straighten out her life.
In 1889 she stows aboard a steamship heading to Hong Kong, exchanging sexual favours for her passage, finding herself impregnated by the ship's cook, a 6'5" Jamaican freedman, upon giving birth to her son in Hong Kong she abandons him with a Jesuite orphanage and makes her way deep into the mainland.
That spring, after having walked barefoot through southern China and subsisting off stolen pig swill she meets a wise old sage who teaches her his own unique blend of martial arts, that he has learnt throughout his life as a private assassin.
By 1895, her teacher passes away having taught her everything he knows. Before he dies he hands her a letter, it contains instructions to travel to San Francisco where she must deliver an ancient medallion to her teacher's son, who lives in that city's Chinese quarter. She heads off to America later that year. During her transit she meets and falls in love with a Japanese woman, who becomes her consort for the next ten years.
However, to their shock, the disreputable shippers drop them and the rest of the emigrés in Chile, instead of California. Over the next decade, Mary Jane and her Japanese girlfriend travel northwards, delayed along the way by their constant need to right post-colonial injustices using martial arts.
In 1904 they arrive in Panama in time to witness the arrival of the Americans, they stay there for several months. While here they become heavily politicised and instigated a Trade Unionist revolt. When hired goons arrived to supress the revolt Mary Jane and her Japanese consort fought them off, leading, through Chinese whispers, to rumours that the canal project had disturbed a civilisation of warrior women.
In 1905, Mary Jame was shot in her left arm while breaking up a bar fight, leaving that arm paralysed for the remainder of her life, taking this as yet another sign, she knew that it was now time for her to continue her quest to reach San Francisco, she travels there on a scooner owned by the Panama Canal Company.
Once she arrives in San Francisco she fails to find her old master's son. She abandons the artefact that she has carried for over a decade and attempts to enter San Franciscan high society. She never marries but is accepted as lady of high standing, a number of San Franciscans contended that she was the rightful heir of Norton I, and often addressed her as Empress Mary Jane I, this never seemed to be something she encouraged, but it became popular nonetheless.
It is rumoured that Mary Jane Kelly was the founder of 'Wrdrem ag Blodeuym', a secret womens'-only member's club that is rumoured to engage in Bacchic rituals and claimed to exist to this day as an insidious force behind the scenes of world politics.
In 1916, she visited Panama to witness the Canal's grand opening. There she met up with her old flame, who was now married to a labourer and activist from Des Moines, and had birthed five children (all her godchildren). Mary Jane never returned from Panama, she died of Cholera the day after reuniting with her Japanese sweetheart.
Her son, Benedict Kelly went on to join the Chinese Communist Party, and was leader of the short-lived Hong Kong Commune.
Among the descendents of her godchildren was Anil Sandreas, the fourth Governor of Yamasungguo Province, Mars, and Jessixa Ngwane, the world's first cyborg porn star.