James Owen Sullivan, The Rev, a drummer and backup singer for Avenged Sevenfold, was found dead at his home in Southern California. Lt. John Domingo says Sullivan, 28, appears to have died of natural causes on Monday in Huntington Beach. Avenged Sevenfold formed in Huntington Beach back in 1999 and won Best New Artist at the MTV Video Music Awards in 2006. The band was reportedly working on their fifth album. The band released a statement Monday expressing their sadness and calling Sullivan “one of the world’s best drummers,” and “our best friend and brother.