You do realize that JFK Jr “died” almost 20 years ago right. Of course he looks different (older).
Yes, people age ( the ones who live; not dead cadavers! )and their looks subtly change over the years; however, their entire physiognomy does not radically change, so that they are unrecognizable.
Nor would a man's voice change completely after puberty, or accents. And I've heard Mr. Fusca talk...you can too, he's on YouTube.