00:00 The hosts discuss the second victim of Jack the Ripper and the characteristic calling card of the Ripper murders.

04:19 The hosts discuss the second victim of Jack the Ripper and the characteristic calling card of the Ripper murders.

08:36 The victims of Jack the Ripper were all known to be prostitutes and alcoholics, making them easy targets for the killer.

12:51 The last canonical murder attributed to Jack the Ripper was the worst mutilation of any of his victims, involving the use of an ax and surgical precision to remove organs and chunks of flesh, and it was also the scene of the first crime scene photograph ever taken.

16:55 Jack the Ripper may have committed additional murders, including one in New York, but there are five, possibly six, canonical murders that are definitively attributed to him, and his modus operandi suggests he was likely a single man with a regular job and a working knowledge of anatomy.

21:10 The FBI profile suggests that Jack the Ripper was an opportunistic lust killer who may have been a cannibal, and there is a controversial letter, known as the "Dear Boss" letter, that is believed to have been written by Jack the Ripper.

25:23 The evidence in the Jack the Ripper case is largely gone, making it unlikely that the case will ever be solved, and there have been over 100 suspects named throughout the years, including a recent one named Robert Mann.

29:36 The suspect Robert Mann, who was an inmate in a prison, is considered a credible suspect by modern forensic psychologists, but his alibi and discounted testimony make it unlikely that he was Jack the Ripper.

33:50 Lewis Carroll, Prince Albert Victor, and the Freemasons were all suggested as suspects in the Jack the Ripper case, but the three official suspects named by Police Commissioner Sir Neville McNaughton were Michael Ofstrog, Monagu John Druitt, and Aaron Kaziminski, although none of them are considered likely to be the Ripper, with Severin Klauzowski being a more probable suspect due to his history of poisoning his wives.

38:20 The Jack the Ripper murders led to the use of modern forensic techniques, shed light on the living conditions in the east end of London, and inspired the creation of Ripperologists and various forms of media.