A composite image of a black and white photograph of a man with a short mustache leaning on two books, and a sepia illustrations of a man in a dark coat and a hat looking to the right.
Montague John Druitt and Aaron Kosminski are two Jack the Ripper suspects.
  • The first episode of Netflix's "Unsolved Mysteries" looks at British serial killer, Jack the Ripper.
  • The infamous murderer killed five women in London in 1888.
  • He seemingly disappeared after the string of killings, but the series looks at four suspects.

Netflix's true crime series, "Unsolved Mysteries," has returned for a fourth season and it kicks off with the story of Jack the Ripper.