Joseph Nelson Cassaro died helping attempt to rescue Joseph C. Granillo from a cave-in, Superior, Arizona, May 10, 1982. When a cave-in occurred in a copper mine, Granillo, 25, was pinned by wet sand and concrete, ore, rock, and timber. Cassaro, 46, mine supervisor, and three other miners were alerted, and despite continually falling debris, went to Granillo and attempted to free him. Further collapses buried Granillo, then Cassaro, both of whom died.
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