Dr. Charles S. Hirsch is the chief medical examiner of New York City and has overseen the autopsies on more than 100,000 people. He would probably remain a mystery to most New Yorkers, if it weren't for his ruling on the death of Det. James Zadroga, who worked clean-up at Ground Zero after September 11, 2001. Hirsch said that Zadroga's death wasn't related to Ground Zero dust, but ground-up pills the detective was allegedly injecting.......