Jack the Ripper. The unknown serial killer murdered and mutilated at least five women in the East End of London in 1888. Every time he gave the police the slip. He only made one mistake – dropping a piece of apron ripped from his fourth victim. Catherine Eddowes was murdered in Mitre Square in the City of London. A copper found the apron piece in Goulston Street, less than half a mile away in Whitechapel. So, what was the East End like at the time of the killings? And how would a modern homicide team investigate them? Jacques Morrell and Simon Ford joined Ripperologist, Mick Priestley, on a tour of Jack the Ripper's backyard.