Osbourne died this past Tuesday, at the age of seventy-six; his family didn’t announce a cause, but he had previously disclosed that he had Parkinson’s disease. By the time of his death, Osbourne had been doubly transformed by Iommi’s good idea about “evil.

Heavy metal rocker Ozzy Osbourne died this week at 76, just weeks after his farewell show and about five years after announcing he had Parkinson's disease. Here's what to know abo