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In Indiana, I think there's a few RLSHs, Citizen Tiger, Doktor DiscorD, Mr. Silent, V, Void...
Mr. Silent might be retired.
There's Animal, and he apparently has a group, the Indiana's Justice Squad.
Infinity-Solider. The second Z, after the first guy changed his name to Zero.
There's also Mystic Z, I don't know if he's one of the other two Z's, but he may have moved to California.