The man arrested in France has a motorcycle helmet similar to one in an e-fit issued by police, according to a French broadcaster. BFM claimed the man lived alone in the mountains and was found with arms in his home.
In November, police released an image of a male motorcyclist they wanted to speak to in connection with the killings. at the time the helmet was said to be "very particular" and one of only a few thousand models worldwide.
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It is alleged Mourinho was helped by his advisers to avoid paying tax on earnings from the use of his image rights for product endorsement.
Somewhat ironically, the Prime Minister's plans were leaked to The Mail on Sunday just days after they were issued.
Tonight it is set to become quite clear with a patchy frost in places. The breeze will keep much of the fog at bay.