Henchmen in neighbors towns?
It's usually because they have large towns with more roads. The henchmen will head for the roads, so many people use only a few roads, and cement for the other raods, to keep the henchmen in one area...
Forum Discussion
I've found that players with lower (or no) activity seem to have more henchmen/criminals clustered in the landing zone. My neighbours who are more active have criminals that are harder to find or more spread out, regardless of number of roads.
