He said he decided to break his silence after watching a "CNN Presents" documentary, "Shoot to Kill, " about the days after Katrina hit the Gulf Coast on August 29, 2005.

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According to the CDC, it takes less than a minute for E. coli to be inactivated if chlorine levels are adequate, about 16 minutes to control Hepatitis A virus, about 45 minutes to kill off the Giardia parasite and over 10 days for a Crypto parasite.

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So if I am going through a disease or treatment that may kill me, I want to use my last days wisely.

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