This might be controversial. I have not checked sources etc but it seems true - unfortunately.

Carey censor/delete if you see it as a problem post.

Go to about 6:45 re atrial fibrillation having caused that young girl's death.
[www.youtube.com]

I've got no problem with the post, but I've only watched a few minutes from the time point you gave and I don't see anything indicating that atrial fibrillation caused her death. I'm going to have to go back further to see what he's talking about.