Yep. Same thing happened to Elvis.
Did Bobby Fischer really die?

My opinion may be in the minority here ... but I believe that Bobby Fischer died. But I will admit, who really knows - I didn't witness this or attend the funeral. Who knows? Maybe Fischer will come out of hiding and prove that his secret chess trainning will win him the world chess championship of 2019. I feel like Fischer has done things like this before. XD

It is true that he might have a motive for putting U.S. authorities off his trail.
But it is well documented that he had a serious kidney condition, and refused medical attention for it.
And no, not even AlphaZero could give odds to God.

When chess GMs from the light side die, their physical body disappears and their energy returns to the board. Unfortunately, only other chess GMs who were present at their passing can still interact with them.

Yes, if he didn't, then he would've killed himself when he realized that Viswanathan Anand (and Magnus Carlsen) have metaphorically mirrored his achievements and more and that he's only famous as the best who ever lived because he's American.
I heard he was in a bunker that had radioactive "stuff" in it. If that is the case, then didn't he just get superpowers or something and the chess world covered it up for their own gain?