This is a worse title. It is less informative ("how many people possibly died...") It is wordier and less catchy, both bad for a headline. Finally, it introd

This is a worse title. It is less informative ("how many people possibly died...") It is wordier and less catchy, both bad for a headline. Finally, it introduces speculation ("possibly resulting in some people dying") where the original article has none ("several years later, 3 out of 5 are dead..." you can conclude it was related, or not, but the headline doesn't take a position).