This is an interesting historical DNA evidence investigation that was brought to light this week on the advent of a book release. Here are some articles along with some thoughts I shared on Al Jazeera America News.     http://www.theguardian.com/uk-news/2014/sep/08/jack-the-ripper-polish-aaron-kosminski-dna DNA analysis of fourth victim’s shawl reveals Jack the Ripper was a Polish hairdresser gone mad […]