Define "died". It's not as easy as you might think, because as medical technology improves, the point of no return slips farther away. Per the article, this child's heart stopped beating for 2 hours.
I know, hence my original question. Although it says the child's heart stopped beating "on its own", which implies that it was still beating through "artificial" means.
It's no big deal, but I've also thought that if someone drowned it implies they died.