Jack the Ripper – the serial killer who murdered at least five women in London's East End in 1888 – is the subject of a special Psycho Killer investigation.M.P. Priestly is the author of 'Jack the Ripper – One Autumn in Whitechapel' and Jack the Ripper tour guide.Mick kindly agreed to answer some questions from former major crime detective Jacque Morrell about the reliability of the witnesses who came forward.Were they attention seekers? Were they profiteers? Or were they, perhaps, covering their tracks?