There’s no real proof that he’s dead.
Thank you. Personally I believe Elvis was tired of being hounded by the IRS, hangers on, and assorted parsites.
According to some sources, Elvis and Andy Kaufman established a secret Shangri-La in the South Pacific on an island about 800 miles WNW of Easter Island. It's well stocked with babes and booze. Provisions are flown in weekly by former CIA black ops pilots. It's the good life. :^)