Multiple women say John Macnamara – the ex-detective whose job was to shut down allegations about Fayed – sought to break their will to speak out

It was May 1991 and Mohamed Al Fayed was in a foul mood: “I told you, no sex with anybody else, no relationship with anybody else.”

The target of the then 62-year-old billionaire’s ire was Jen, 20, who had worked in his personal office at Harrods since the age of 16.