It started with the unexplained deaths of four young, gay men, whose bodies were found in Barking, East London. It led to the conviction of Stephen Port, whose warped fantasies drove him to administer lethal doses of the date-rape drug, GHB. But the case of the Grindr Killer is far from over, with calls for a Public Enquiry into allegations of institutionalised homophobia at the Metropolitan Police. But why did the 'catalogue of errors' come about? How were crucial errors made? Were processes, not people, to blame? In this podcast, former major crime detective, Jacques Morrell, and journalist, Simon Ford, examine the evidence.