Maybe he's alive and waiting to be pardoned?

Speaking of Elvis. Has anyone seen the movie Bubba Ho-tep?
Two guys in a rest home.
Bruce Campbell claims to be the real Elvis who switched palces with an impersonator who then died so nobody will believe he's the real Elvis.

Elvis: So I signed everything over to Sebastian. Except for enough money to sustain me if things got bad. I was determined to make myself a new life. A better one. But me and Sebastian, we had us a deal. If I wanted to trade back, he'd let me. It was all written up in the contract. Thing was, I lost my copy in a barbeque accident.

Ozzie Davis claims to be JFK and that Lyndon Johnson is still sending assassins after him. "Lyndon Johnson is dead" "that won't stop him!".

JFK: That's where they took a piece of my brain. They got it back in D.C. in that God damn jar.
[pause]
JFK: I got a little bag of sand up there now.
Elvis: But Jack uhh, no offense but
[pause]
Elvis: President Kennedy was a white man.
JFK: That's how clever they are. They dyed me this color, all over. can you think of a better way to hide the truth than that?