Jack the Ripper had killed at least five women in 1888, and while his infamous fame still exists today; nobody really knew who he really was. Now a study using DNA has claimed that Jack's real name was Aaron Kosminski, who was originally from Poland. He was one of the original suspects, and he later went to an insane asylum in 1891. Kosminski lived around the area where Jack's victims were found, and a total of eleven similar cases were found in the area. Only five were surely done by Jack, six more happened until 1891 which was the same year he lost his freedom.