The only news I could find is "He died suddenly", with heart attack. He was a big fitness guy, and even at 62, he was pretty much in better physical shape than most people. Of course we will never have proof it's the vaccines, but that's a lot of red flags that we've seen again and again for the past year and a half now. He was apparently full-on on the covid vaccine, so it wouldn't be surprising if he took the boosters a few weeks or months before his death too (especially since he's > 60 years old).

Most heart damage are basically permanent. Heart muscles regenerate very very slowly compared to other muscles (since, you know, the heart can't really afford to take a break, even for a minute), which is why avoiding any damage on that area is important, and why "Mild myocarditis" is a fucking lie.