[It would be surprising if it didn't affect them at all. He lowered his head. How awful it must feel to lose a sibling like that.]

[quietly]...No one could blame them for feeling upset and angry about that.

...I...I...[What could he say? 'I'm sorry' wouldn't change anything, no matter how many times he said it, he knew that. And he felt as helpless as an injured animal.]

...SWEET TALK!