I'd seem this a while ago. Go to the white pages of a large city and do a search for walter white. The name isn't unusual. I think the psychosis from staying up for 4.5.6.7. days at a time and the hallucinations of satan
and zombies, whatever , the paranoia has to unbelievable. The conversion to religion must be a great escape.
I don't see why this would be fake, but I do sense its a bit overexaggerated in terms of how big time this guy was. I don't doubt he supplied a reasonably large amount of meth heads, but there have probably been hundreds of cooks with similar sized operations. This one just happened to get away from it with minimal punishment and his name is apparently Walter White, which in Alabama and the rest of the deep south is probably quite common.