Also, if we are to believe that a pedo saw the kids biking to Tom Thumb while passing in a car. AND that the abduction was purely a crime of "opportunity, circumstance, and quick timing". Then how can you explain the fact that the perpetrator was equipped with a all black outfit, nylon to cover his face, AND a gun? Seems to me that the perpetrator would need to grab these items from a nearby location, rush back to his car, hide the the car, hide himself in a ditch, and wait for the kids to return.
Seems more logical that DR watched the kids bike by (probably while hiding in the ditch), Ran back to his house (1/4 mile down the driveway where Jacob was abducted), grabbed the items, returned to the ditch, and waited for the kids to return.