when there is a tragedy/death why do we say I'm sorry? it doesn't apply unless you do wrong. R there better words? don't say condolences
sorry means sorrow,it does apply
Excellent answer (oops, I meant to make that a comment to @crowtrobot)
It just means you feel bad the person is going through that.
I always sign: my thoughts are with you and your family at this time of your loss.