You are the one who should check your facts.
In fact,the head of the hotel workers union there was out on bail for that armored car robbery in Connecticut. Many of the union members were members of Macheteros. The goal was to rob the casino, with the fire as a distraction. They didn't get the money because the casino's doors were locked. A secret service man died in that fire.
That fire had *everything* to do with the independence movement.
Urban legend.