An added comment on Heath Ledger
It's just a shock, yes, people die every day. But when they're that young, and going from full health to the news headline in an hour flat (I'd just been reading a blurb about his part as the Joker in the next Batman movie), it makes you pause and think. It can go just that fast. Sure, he may well have overdosed, but the point still stands, that it can be gone in one misstep, or one quick accident.