It is the greatest murder mystery of all time, a puzzle that has perplexed criminologists for more than a century and spawned books, films and myriad theories ranging from the plausible to the utterly bizarre. But now, thanks to modern forensic science, The Mail on Sunday can exclusively reveal the true identity of Jack the Ripper, the serial killer responsible for at least five grisly murders in Whitechapel in East London during the autumn of 1888. DNA evidence has now shown beyond reasonable doubt which one of six key suspects commonly cited in connection with the Ripper’s reign of terror...