There are sexual predators literally everywhere. If you live in Bradford, Oldham or a number of other towns or cities across England, paedophile rapists are quite common - certainly if the statistics and Baroness Casey are to be believed.
This truth established, only crimes similar to what is alleged in relation to MM should be considered.
Now, how many tourist infants were abducted in the Algarve say ten years either side of 2007? How many tourist infants suffered an attempted abduction? How many tourist infants were murdered over the same time period.
The suggestion that there was a sexual prowler on the loose and that this means something in relation to MM is illogical.