He realizes that the robbers are hidden where they get no news, so will be appearing soon; one of them fishes for old newspapers at a gas station and drives off just as Chee drives in to fill up his gas tank. The station owner gives enough description to indicate it is Ironhand.
He comes to the realization that the thieves are concealed in a location where they have no knowledge, so will soon become apparent; one of them searches for old newspapers at a gas station and leaves just as Chee pulls in to refuel his car. The station owner provides enough information to imply it is Ironhand.