Unfortunately, he is going through an incredibly scary health situation right now. In a message to his followers on Twitter, Walton revealed that he was diagnosed with colon cancer. He will now need surgery to have parts of his colon removed. However, he did reveal that the prognosis is looking pretty good. That said, he is not out of the woods just yet.
Cancer is incredibly scary, regardless of what the prognosis is. Every single person knows at least someone who has gone through cancer and the horrible effects it has on individuals and their families. A cure needs to be found soon so that people can live longer, healthier, and less stressful lives.