On 25 November 2009, his wife/manager announced that Dio was diagnosed with stomach cancer:
"Ronnie has been diagnosed with the early stages of stomach cancer. We are starting treatment immediately at the Mayo Clinic. After he kills this dragon, Ronnie will be back on stage, where he belongs, doing what he loves best, performing for his fans. Long live rock and roll, long live Ronnie James Dio. Thanks to all the friends and fans from all over the world that have sent well wishes. This has really helped to keep his spirit up."
On 14 March 2010, Dio's wife and manager Wendy posted an online update on his condition:
"It has been Ronnie's 7th chemo, another cat scan and another endoscopy, and the results are good - the main tumour has shrunk considerably, and our visits to Houston (cancer clinic in Texas) are now every three weeks instead of every two weeks."
On 4 May 2010, Heaven and Hell announced they were cancelling all summer dates as a result of Dio's ill health.
Dio died at 7.45am (CST) on May 16, 2010, according to official sources.
Wendy Dio said on Ronnie's official site
"Today my heart is broken, Ronnie passed away at 7:45am 16th May. Many, many friends and family were able to say their private good-byes before he peacefully passed away. Ronnie knew how much he was loved by all. We so appreciate the love and support that you have all given us. Please give us a few days of privacy to deal with this terrible loss. Please know he loved you all and his music will live on forever."
Watch the posted video on YouTube.
