How does Death Among Us work: how often is it rolled and who is affected?

Question

Accepted Answer

Roll the Black die once at the end of Dawn if any character died or left the group that day, however many did. Each character raises Misery by 2 if the result is equal to or lower than their Empathy. A character who arrived after the death still takes part, and if the roll kills someone, it does not trigger another Death Among Us.

This War of Mine: The Board Game

How does Death Among Us work: how often is it rolled and who is affected?