Aree Osbourne vowed to look after her mother-in-law, Sharon Osbourne, in the wake of Ozzy Osbourne’s death. The wife of Jack Osbourne posted a poignant tribute to Instagram a few days after the Black Sabbath legend’s life was remembered with a funeral procession and memorial service at his

According to a death certificate obtained by The New York Times, the 76-year-old died of “out of hospital cardiac arrest” and “acute myocardial infarction.” Coronary artery disease and Parkinson’s disease with autonomic dysfunction were listed as contributing causes.