Was Jack the Ripper a Jewish immigrant from Poland?

On the eve of the release of his book Naming Jack The Ripper, a British businessman claims that he has ascertained the real name of 19th century serial murder Jack the Ripper using 126-year-old DNA extracted from blood found on the shawl of one of his victims. In an article written for "The Daily Mail", businessman and armchair detective Russell Edwards, 48, claims that the man responsible for the five murders in East London in 1888 was Aaron Kosminski, a Polish Jew who had moved to London in the early 1880s.