R.I.P Jimmy 'The Rev' Sullivan

James Owen Sullivan, the drummer for the Huntington Beach rock band Avenged Sevenfold, died Monday, Orange County authorities said.

Sullivan, 28, of Huntington Beach, also performed as a backup vocalist for the group of trained multi-instrumental musicians with classical influences, which formed in 1999.

“The cause of death is still under investigation,” said Deputy Coroner Mitchell Sigal. “An autopsy has been scheduled.”