Mention of him being Jewish:
Before buying it, I spoke to Alan McCormack, the officer in charge of the Crime Museum, also known as the Black Museum. He told me the police had always believed they knew the identity of the Ripper. Chief Inspector Donald Swanson, the officer in charge of the investigation, had named him in his notes: Aaron Kosminski, a Polish Jew who had fled to London with his family, escaping the Russian pogroms, in the early 1880s.
Bolded passage:
Shawl that nailed Polish lunatic Aaron Kosminski and the forensic expert that made the critical match
Subtitle:
Jack the Ripper has been identified as Polish-born Aaron Kosminski
Hairdresser Kosminski lived in Whitechapel and was later put in an asylum
Caption beneath sketch:
GUILTY: A DNA sample has proven Polish immigrant Aaron Kosminski was Jack the Ripper