What was significant about the death of Fire Chief Ray Downey during the collapse of the World Trade Center?

Ray Downey was a New York City Fire Department chief known for his expertise in urban search and rescue. He helped lead rescue efforts after the 1995 Oklahoma City bombing, making his death in the World Trade Center collapse especially significant. The best answer is C, that he had served as a pivotal worker in the rescue of survivors of the Oklahoma City bombing.

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