Well, since you have no way of proving it, I will say yes. Many of them would have played against Connor at one point or another (like the kid from Webster Groves). They actually do know of other players. Iowa City West has been playing out of state for the last few years - they can't get 5 teams to play them in non-conference.
Plus, all of the other coaches are telling the players - look, Connor is going to Iowa and he is going to play PG. You don't really want to go there.
Look at the kids we offered last year at the PG position, they're not local kids besides Moore who was from Chicago and Jackson who was junior college so he wouldn't have seen him play.