Wendy Dio has revealed in a recent interview that the couple didn't think Ronnie would succumb to cancer, despite the prognosis of his doctors. Ronnie died of gastric cancer in May 2010. He was diagnosed with the condition less than six months earlier after going to the doctor, complaining of abdominal discomfort. "We were told it was stage four cancer, but we didn't believe that Ronnie wouldn't make it, because Ronnie was a very strong person," Wendy told Planet Rock (per Blabblermouth.net). "And we went to Houston to MD Anderson [Cancer Center] for his chemo treatment, and we would say, 'We're killing the dragon.' We called it the 'dragon,' and we said, 'We're killing the dragon.' Ronnie didn't suffer a lot. He did his chemo treatments. And I didn't think he was gonna die. I [thought] he was gonna beat it."