One by one, the workers went down a manhole. Then silence. All are dead.

An unimaginable tragedy struck in a small community of a few dozen homes on Long Key Road in the Florida Keys Monday morning, when three workers from a private contractor tasked with fixing a roadway climbed into a hole in the ground and, ultimately, to their deaths. By the time a Key Largo firefighter climbed into the same hole near Lake Surprise in a desperate attempt to save the men, they were dead. And within seconds, the firefighter was also overcome by poisonous gas and was fighting for his life.
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