It is a mistake to even think in terms of "odds" because we do not know how many times the dice were rolled.
One predator or several? Operating in one resort, or wandering from resort to resort? How many hotels? How many rooms? How many families? How many days, or weeks, or months, or years to "roll a 6"? How many failed attempts?
I had a motorcycle stolen from my office car park a few years ago. Arriving back from lunch in a hurry, I left it unlocked for 40 minutes. What were the odds that in that particular 40 minutes a motorcycle thief would happen to be passing?
If it was entirely random, the odds would be very low. However, I parked there every day, and there were other bikes and cars there too. If the same thief passed through that car park every day, just after lunch, on the look out for an unlocked motorcycle or car, then the odds on him passing in that particular 40 minutes were almost 100%.
Another way of looking at it might be to say that the odds of this child being abducted were, say, 1 in 10,000. However, it would be a simple matter of looking through hotel records for the town to find the names of the other 9,999 kids who were not abducted.
The fact that something is rare does not mean it is impossible. However, the fact that something has a probability of less than zero makes its eventual occurrence almost inevitable given sufficient time.