How did Jack Ruby know it was "The Fair Play for Cuba Committee" at the Oswald Dallas Police PressCF

[Tracy Riddle]

At the press conference, with Oswald looking right at him in disgust, Jack Ruby corrected the spokesman as he stumbled on the name and Ruby said clearly, "The Fair Play For Cuba Committee".

JUST HOW IN THE HELL DID THIS OBSCURE DALLAS STRIP CLUB OWNER KNOW THE EXACT NAME OF A PRO CASTRO GROUP LOCATED IN NEW ORLEANS IN WHICH OSWALD (SOMEONE THAT HE HAD NEVER MET) WAS PASSING OUT LEAFLETS IN SUPPORT OF THE GROUP?

I appreciate any comments.

Oswald actually wasn't in the room any longer at that point. It was during Henry Wade's press conference.

Lone-nutters have explained it by saying that it was all over the radio and in the newspapers that afternoon that Oswald was in the FPCC, and Ruby was a news junkie.