Man, that's too bad. News like that makes my stomach turn upside-down . . .
I know Corona really well from passing through. Radio Comms are an issue there due to the close proximity to Ontario, Chino, and Riverside (C,D, and D)
so I find myself often listening to a "bigger" and "more important" frequency rather than Coronas UNICOM. Not very comfortable....
Cable Airport is kind of like that as well.....