[There's a soft "oh" at that. He doesn't speak again for the time being as he ponders that over, but he knows Yu's right. Grief does weird things to people.]

...Callaghan wanted revenge on Krei for what happened to his daughter because he didn't have anyone to convince him otherwise. We tried to talk him out of it but he was too focused on his anger. That was before we knew Abigail was still alive. [A pause.] But...how do you stop grief from completely taking over like that?