According to this story, Jonathan Moy had an apartment behind one of Nairobi's smart hotels and would have the chauffeur pick Julie up from where she was staying and then take them both to restaurants around the city.

She also described repeated arguments Julie and Jonathan had in the back of the vehicle, including one particularly heated row that took place shortly before Julie travelled to the Maasai Mara for the last time.

I can't really speak to my chauffeur's motives in telling me all this.

I can only say that the details she shared were specific, unprompted and absolutely identical on both occasions.

But Nigel doesn't think he pursued it.

I was not told that any contact was made with this person and I never heard anything further about it once I'd provided the details.

Any decision on how to pursue the lead rested entirely with John.