While there is little proof behind this theory, fans have since pointed at the final words of Elvis’ pal Joe Esposito.
Esposito was one of Elvis’ closest friends and road manager during his illustrious career.
Esposito maintained that the Jailhouse Rock star died all the way up to his own death – however his tune changed a little when he was about to die.
According a report at the time, Esposito suggested Elvis was actually a part of this rumoured FBI operation against a criminal organisation.
