Lifestyle | Slipknot 'Accidental' OD Killed Slipknot Bassist Coroner blames morphine for Paul Gray's death By Rob Quinn Posted Jun 22, 2010 3:40 AM CDT Copied Brenna Gray speaks about the death of her husband, Slipknot bassist Paul Gray during a news conference, Tuesday, May 25, 2010, in Des Moines, Iowa. (AP Photo/Charlie Neibergall) An "accidental" overdose of morphine and the painkiller fentanyl caused the death of Slipknot bassist Paul Gray last month, according to autopsy results. The coroner says the 38-year-old also suffered from "significant heart disease," Reuters reports. Investigators found no evidence that Gray had prescriptions for either the morphine or the fentanyl. Read These Next Iran's new supreme leader is said to already have war wounds. One critical island in Iran has remained unscathed in airstrikes. Another administration official apparently moves to a military base. Warning to Trump on Iran: Don't 'get eliminated yourself.' Report an error