New Forensic Study May Have Finally Identified 'Jack the Ripper' The study says the infamous murderer was <br />23-year-old Polish native Aaron Kominski. Kominski worked as a barber around London during the time of the killings in 1888. 'Jack the Ripper' is said to be responsible for the murders of <br />five women over <br />three months. His identity has never <br />been fully revealed. But now, researchers at Leeds University say they've matched DNA from a victim to one of Kominski's living descendants. The DNA comes from a <br />blood stain on a shawl worn <br />by Catherine Eddowes. Eddowes was the fourth person <br />killed by the Ripper, whose victims<br /> were all sex workers. Kominski, who died in 1919, has previously <br />been on the list of potential suspects. Critics say there's no way to prove the shawl belonged to Eddowes, meaning the DNA is inconclusive.