Narconon is a program that advertises it's success in freeing individuals from drug addiction by natural methods. Methods like spending months in a sauna. It's actually a front group to recruit members for Scientology, the cult of Hollywood stars. The video below is an Australian expose of this particular branch of Satanist L. Ron Hubbard's cult.
This video covers some of the unfortunated folks who died going through Scientology "auditing" (brainwashing)techniques, or were simply murdered. The main center they are discussing here is located in Clearwater, Florida.