If he is trolling the internet looking for cancer patients to prey on and sell his stuff to, he is a scammer, or maybe not a scammer, if you want to buy his book and snake oil, anyone can sell anything, if you will buy it. If he had a great approved method of dealing with cancer, lots of doctors would be using his methods, or products.
This is just me, I never heard of him, but I wouldn't go to a guy that was on the internet selling hodgkins pills.
I know we like to look for other ideas, but I don't think so.
Best of luck to you, hope your condition is going the right way!