Vektek, you are very brainwashed with false doctrine. Jesus paid for our healing for the Bible says that by His stripes we are healed. God manifests this healing in our bodies as He wills.
I don't know anything about the guy you are talking about, but if he was preaching the truth, he obviously did not practice it. I don't know of any secrets of healing. Maybe it was not on supernatural healing. Maybe he was pushing a raw food diet or something, but it has nothing to do with what we are talking about.